./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.opt.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/safe032_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5f2763da08d7efb0b4db568b1aa84a467c0790b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:45:44,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:45:44,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:45:44,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:45:44,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:45:44,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:45:44,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:45:44,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:45:44,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:45:44,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:45:44,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:45:44,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:45:44,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:45:44,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:45:44,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:45:44,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:45:44,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:45:44,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:45:44,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:45:44,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:45:44,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:45:44,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:45:44,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:45:44,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:45:44,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:45:44,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:45:44,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:45:44,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:45:44,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:45:44,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:45:44,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:45:44,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:45:44,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:45:44,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:45:44,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:45:44,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:45:44,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:45:44,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:45:44,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:45:44,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:45:44,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:45:44,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:45:44,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:45:44,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:45:44,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:45:44,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:45:44,440 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:45:44,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:45:44,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:45:44,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:45:44,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:45:44,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:45:44,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:45:44,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:45:44,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:45:44,444 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:45:44,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:45:44,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:45:44,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:45:44,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:45:44,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:45:44,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:45:44,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:45:44,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:45:44,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:45:44,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:45:44,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:45:44,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:45:44,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:45:44,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:45:44,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:45:44,454 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 -> e5f2763da08d7efb0b4db568b1aa84a467c0790b [2020-07-28 21:45:44,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:45:44,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:45:44,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:45:44,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:45:44,871 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:45:44,873 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.opt.i [2020-07-28 21:45:44,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2afb0a2/66c57f48274042148125c096a3d5fb61/FLAGf868fe11a [2020-07-28 21:45:45,512 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:45:45,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.opt.i [2020-07-28 21:45:45,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2afb0a2/66c57f48274042148125c096a3d5fb61/FLAGf868fe11a [2020-07-28 21:45:45,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2afb0a2/66c57f48274042148125c096a3d5fb61 [2020-07-28 21:45:45,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:45:45,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:45:45,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:45:45,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:45:45,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:45:45,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:45:45" (1/1) ... [2020-07-28 21:45:45,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a8c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:45, skipping insertion in model container [2020-07-28 21:45:45,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:45:45" (1/1) ... [2020-07-28 21:45:45,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:45:45,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:45:46,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:45:46,386 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:45:46,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:45:46,544 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:45:46,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46 WrapperNode [2020-07-28 21:45:46,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:45:46,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:45:46,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:45:46,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:45:46,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:45:46,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:45:46,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:45:46,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:45:46,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (1/1) ... [2020-07-28 21:45:46,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:45:46,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:45:46,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:45:46,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:45:46,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (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 21:45:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:45:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:45:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:45:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:45:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:45:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:45:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:45:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:45:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:45:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:45:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:45:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:45:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:45:46,710 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 21:45:47,163 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:45:47,164 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:45:47,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:45:47 BoogieIcfgContainer [2020-07-28 21:45:47,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:45:47,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:45:47,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:45:47,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:45:47,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:45:45" (1/3) ... [2020-07-28 21:45:47,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434f2325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:45:47, skipping insertion in model container [2020-07-28 21:45:47,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:45:46" (2/3) ... [2020-07-28 21:45:47,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434f2325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:45:47, skipping insertion in model container [2020-07-28 21:45:47,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:45:47" (3/3) ... [2020-07-28 21:45:47,183 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2020-07-28 21:45:47,194 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:45:47,194 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:45:47,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:45:47,204 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:45:47,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,238 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,238 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,245 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,261 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,267 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:45:47,285 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:45:47,313 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:45:47,313 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:45:47,313 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:45:47,314 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:45:47,314 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:45:47,315 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:45:47,315 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:45:47,315 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:45:47,343 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:45:47,345 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:45:47,429 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:45:47,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:45:47,438 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 49 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 21:45:47,444 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:45:47,490 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:45:47,491 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:45:47,492 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 49 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 21:45:47,496 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:45:47,498 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:45:49,670 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2365 [2020-07-28 21:45:49,671 INFO L214 etLargeBlockEncoding]: Total number of compositions: 53 [2020-07-28 21:45:49,674 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-07-28 21:45:49,705 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-07-28 21:45:49,707 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-07-28 21:45:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:45:49,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:49,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:49,716 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-07-28 21:45:49,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:49,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267230918] [2020-07-28 21:45:49,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:49,913 INFO L280 TraceCheckUtils]: 0: Hoare triple {804#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {804#true} is VALID [2020-07-28 21:45:49,914 INFO L280 TraceCheckUtils]: 1: Hoare triple {804#true} [163] L770-->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] {804#true} is VALID [2020-07-28 21:45:49,914 INFO L280 TraceCheckUtils]: 2: Hoare triple {804#true} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {804#true} is VALID [2020-07-28 21:45:49,915 INFO L280 TraceCheckUtils]: 3: Hoare triple {804#true} [165] L772-->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] {804#true} is VALID [2020-07-28 21:45:49,916 INFO L280 TraceCheckUtils]: 4: Hoare triple {804#true} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {804#true} is VALID [2020-07-28 21:45:49,916 INFO L280 TraceCheckUtils]: 5: Hoare triple {804#true} [167] L774-->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] {804#true} is VALID [2020-07-28 21:45:49,917 INFO L280 TraceCheckUtils]: 6: Hoare triple {804#true} [217] L774-1-->L7: Formula: false InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_21|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_25, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {805#false} is VALID [2020-07-28 21:45:49,918 INFO L280 TraceCheckUtils]: 7: Hoare triple {805#false} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {805#false} is VALID [2020-07-28 21:45:49,921 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 21:45:49,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267230918] [2020-07-28 21:45:49,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:49,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:45:49,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115242054] [2020-07-28 21:45:49,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:45:49,932 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:49,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:45:49,954 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 21:45:49,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:45:49,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:49,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:45:49,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:45:49,969 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-07-28 21:45:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,114 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-07-28 21:45:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:45:50,115 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:45:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:45:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:45:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:45:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:45:50,122 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 20 transitions. [2020-07-28 21:45:50,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:50,189 INFO L225 Difference]: With dead ends: 362 [2020-07-28 21:45:50,190 INFO L226 Difference]: Without dead ends: 298 [2020-07-28 21:45:50,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:45:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-28 21:45:50,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,305 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,306 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,308 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,308 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,308 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,309 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,309 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,309 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,310 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,310 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,310 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,311 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,311 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,312 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,312 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,312 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,313 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,313 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,313 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,313 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,314 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,314 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,314 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,315 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,315 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,316 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,317 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,317 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,317 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,317 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,319 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,319 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,319 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,320 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,320 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,320 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,320 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,321 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,321 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,321 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-07-28 21:45:50,389 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:50,390 INFO L82 GeneralOperation]: Start isEquivalent. First operand 298 states. Second operand 298 states. [2020-07-28 21:45:50,391 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:45:50,391 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:45:50,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,421 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:45:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:45:50,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:50,425 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:50,425 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:45:50,426 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:45:50,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,452 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:45:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:45:50,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:50,455 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:50,456 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:50,456 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-28 21:45:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-07-28 21:45:50,478 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-07-28 21:45:50,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:50,479 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-07-28 21:45:50,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:45:50,479 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:45:50,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:45:50,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:50,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:50,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:45:50,481 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:50,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-07-28 21:45:50,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:50,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4350366] [2020-07-28 21:45:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:50,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {2362#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,590 INFO L280 TraceCheckUtils]: 1: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [163] L770-->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] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,591 INFO L280 TraceCheckUtils]: 2: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,594 INFO L280 TraceCheckUtils]: 3: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [165] L772-->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] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,595 INFO L280 TraceCheckUtils]: 4: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,597 INFO L280 TraceCheckUtils]: 5: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [167] L774-->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] {2364#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,598 INFO L280 TraceCheckUtils]: 6: Hoare triple {2364#(= 0 ~__unbuffered_cnt~0)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~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$tmp_guard0~0] {2363#false} is VALID [2020-07-28 21:45:50,599 INFO L280 TraceCheckUtils]: 7: Hoare triple {2363#false} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2363#false} is VALID [2020-07-28 21:45:50,599 INFO L280 TraceCheckUtils]: 8: Hoare triple {2363#false} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {2363#false} is VALID [2020-07-28 21:45:50,600 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 21:45:50,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4350366] [2020-07-28 21:45:50,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:50,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:45:50,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205448384] [2020-07-28 21:45:50,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:45:50,603 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:50,603 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:45:50,618 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 21:45:50,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:45:50,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:50,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:45:50,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:45:50,619 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-07-28 21:45:50,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,672 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:45:50,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:45:50,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:45:50,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:45:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:45:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:45:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:45:50,675 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2020-07-28 21:45:50,720 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:50,725 INFO L225 Difference]: With dead ends: 217 [2020-07-28 21:45:50,726 INFO L226 Difference]: Without dead ends: 217 [2020-07-28 21:45:50,727 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 21:45:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-28 21:45:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-07-28 21:45:50,782 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:50,782 INFO L82 GeneralOperation]: Start isEquivalent. First operand 217 states. Second operand 217 states. [2020-07-28 21:45:50,782 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:45:50,782 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:45:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,793 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:45:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:45:50,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:50,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:50,794 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:45:50,794 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:45:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:50,805 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:45:50,805 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:45:50,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:50,806 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:50,806 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:50,806 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-28 21:45:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-07-28 21:45:50,817 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-07-28 21:45:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:50,817 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-07-28 21:45:50,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:45:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:45:50,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:45:50,818 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:50,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:50,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:45:50,818 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:50,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:50,819 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-07-28 21:45:50,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:50,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703131142] [2020-07-28 21:45:50,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:50,951 INFO L280 TraceCheckUtils]: 0: Hoare triple {3452#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,952 INFO L280 TraceCheckUtils]: 1: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [163] L770-->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] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,953 INFO L280 TraceCheckUtils]: 2: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,954 INFO L280 TraceCheckUtils]: 3: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [165] L772-->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] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,954 INFO L280 TraceCheckUtils]: 4: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,955 INFO L280 TraceCheckUtils]: 5: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,956 INFO L280 TraceCheckUtils]: 6: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [167] L774-->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] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,957 INFO L280 TraceCheckUtils]: 7: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {3454#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:50,958 INFO L280 TraceCheckUtils]: 8: Hoare triple {3454#(= 0 ~__unbuffered_cnt~0)} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3455#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:45:50,959 INFO L280 TraceCheckUtils]: 9: Hoare triple {3455#(<= ~__unbuffered_cnt~0 1)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~main$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] {3453#false} is VALID [2020-07-28 21:45:50,960 INFO L280 TraceCheckUtils]: 10: Hoare triple {3453#false} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3453#false} is VALID [2020-07-28 21:45:50,960 INFO L280 TraceCheckUtils]: 11: Hoare triple {3453#false} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {3453#false} is VALID [2020-07-28 21:45:50,961 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 21:45:50,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703131142] [2020-07-28 21:45:50,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:50,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:45:50,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666188434] [2020-07-28 21:45:50,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:45:50,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:50,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:45:50,981 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 21:45:50,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:45:50,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:50,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:45:50,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:45:50,982 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-07-28 21:45:51,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,094 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:45:51,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:45:51,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:45:51,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:45:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:45:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:45:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:45:51,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 43 transitions. [2020-07-28 21:45:51,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:51,153 INFO L225 Difference]: With dead ends: 136 [2020-07-28 21:45:51,154 INFO L226 Difference]: Without dead ends: 136 [2020-07-28 21:45:51,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:45:51,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-28 21:45:51,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-28 21:45:51,196 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:51,196 INFO L82 GeneralOperation]: Start isEquivalent. First operand 136 states. Second operand 136 states. [2020-07-28 21:45:51,196 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:45:51,196 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:45:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,203 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:45:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:45:51,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,204 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:45:51,204 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:45:51,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,211 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:45:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:45:51,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,212 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:51,212 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-28 21:45:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-07-28 21:45:51,218 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-07-28 21:45:51,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:51,219 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-07-28 21:45:51,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:45:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:45:51,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:45:51,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:51,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:51,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:45:51,221 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:51,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:51,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-07-28 21:45:51,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:51,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791857175] [2020-07-28 21:45:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:51,296 INFO L280 TraceCheckUtils]: 0: Hoare triple {4138#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [163] L770-->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] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,299 INFO L280 TraceCheckUtils]: 2: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,300 INFO L280 TraceCheckUtils]: 3: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [165] L772-->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] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,300 INFO L280 TraceCheckUtils]: 4: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,301 INFO L280 TraceCheckUtils]: 5: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,302 INFO L280 TraceCheckUtils]: 6: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [167] L774-->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] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,303 INFO L280 TraceCheckUtils]: 7: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [192] P2ENTRY-->L747: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= 2 v_~x~0_28)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~x~0] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,304 INFO L280 TraceCheckUtils]: 8: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4140#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:45:51,305 INFO L280 TraceCheckUtils]: 9: Hoare triple {4140#(= 0 ~__unbuffered_cnt~0)} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4141#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:45:51,306 INFO L280 TraceCheckUtils]: 10: Hoare triple {4141#(<= ~__unbuffered_cnt~0 1)} [158] L747-->L750: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4141#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:45:51,307 INFO L280 TraceCheckUtils]: 11: Hoare triple {4141#(<= ~__unbuffered_cnt~0 1)} [201] L750-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_76 1) v_~__unbuffered_cnt~0_75) (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4142#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:45:51,308 INFO L280 TraceCheckUtils]: 12: Hoare triple {4142#(<= ~__unbuffered_cnt~0 2)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~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$tmp_guard0~0] {4139#false} is VALID [2020-07-28 21:45:51,308 INFO L280 TraceCheckUtils]: 13: Hoare triple {4139#false} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4139#false} is VALID [2020-07-28 21:45:51,309 INFO L280 TraceCheckUtils]: 14: Hoare triple {4139#false} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4139#false} is VALID [2020-07-28 21:45:51,310 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 21:45:51,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791857175] [2020-07-28 21:45:51,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:51,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:45:51,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3636628] [2020-07-28 21:45:51,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:45:51,312 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:51,312 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:45:51,333 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 21:45:51,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:45:51,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:51,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:45:51,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:45:51,334 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-07-28 21:45:51,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,437 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:45:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:45:51,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:45:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:45:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:45:51,446 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:45:51,504 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:51,505 INFO L225 Difference]: With dead ends: 109 [2020-07-28 21:45:51,506 INFO L226 Difference]: Without dead ends: 109 [2020-07-28 21:45:51,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:45:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-28 21:45:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-28 21:45:51,530 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:51,531 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 109 states. [2020-07-28 21:45:51,531 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:45:51,531 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:45:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,542 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:45:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:45:51,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,543 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,543 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:45:51,543 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:45:51,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,550 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:45:51,550 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:45:51,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,550 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,551 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:51,551 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-28 21:45:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-07-28 21:45:51,554 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-07-28 21:45:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:51,554 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-07-28 21:45:51,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:45:51,554 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:45:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:45:51,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:51,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:51,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:45:51,555 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:51,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-07-28 21:45:51,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:51,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801649003] [2020-07-28 21:45:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:51,642 INFO L280 TraceCheckUtils]: 0: Hoare triple {4690#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4690#true} is VALID [2020-07-28 21:45:51,642 INFO L280 TraceCheckUtils]: 1: Hoare triple {4690#true} [163] L770-->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] {4690#true} is VALID [2020-07-28 21:45:51,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {4690#true} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {4690#true} is VALID [2020-07-28 21:45:51,643 INFO L280 TraceCheckUtils]: 3: Hoare triple {4690#true} [165] L772-->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] {4690#true} is VALID [2020-07-28 21:45:51,643 INFO L280 TraceCheckUtils]: 4: Hoare triple {4690#true} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {4690#true} is VALID [2020-07-28 21:45:51,643 INFO L280 TraceCheckUtils]: 5: Hoare triple {4690#true} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4690#true} is VALID [2020-07-28 21:45:51,644 INFO L280 TraceCheckUtils]: 6: Hoare triple {4690#true} [167] L774-->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] {4690#true} is VALID [2020-07-28 21:45:51,645 INFO L280 TraceCheckUtils]: 7: Hoare triple {4690#true} [192] P2ENTRY-->L747: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= 2 v_~x~0_28)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~x~0] {4692#(= 2 ~x~0)} is VALID [2020-07-28 21:45:51,645 INFO L280 TraceCheckUtils]: 8: Hoare triple {4692#(= 2 ~x~0)} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,646 INFO L280 TraceCheckUtils]: 9: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,647 INFO L280 TraceCheckUtils]: 10: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [190] 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] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,647 INFO L280 TraceCheckUtils]: 11: Hoare triple {4693#(= 2 ~__unbuffered_p1_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] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,648 INFO L280 TraceCheckUtils]: 12: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [205] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_83 1) v_~__unbuffered_cnt~0_82) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_83} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,649 INFO L280 TraceCheckUtils]: 13: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [158] L747-->L750: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,649 INFO L280 TraceCheckUtils]: 14: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [201] L750-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_76 1) v_~__unbuffered_cnt~0_75) (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,650 INFO L280 TraceCheckUtils]: 15: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~main$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] {4693#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:45:51,651 INFO L280 TraceCheckUtils]: 16: Hoare triple {4693#(= 2 ~__unbuffered_p1_EAX~0)} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4694#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} is VALID [2020-07-28 21:45:51,652 INFO L280 TraceCheckUtils]: 17: Hoare triple {4694#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4691#false} is VALID [2020-07-28 21:45:51,653 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 21:45:51,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801649003] [2020-07-28 21:45:51,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:51,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:45:51,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523890751] [2020-07-28 21:45:51,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:51,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:51,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:45:51,678 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:51,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:45:51,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:51,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:45:51,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:45:51,679 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-07-28 21:45:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,831 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions. [2020-07-28 21:45:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:45:51,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:51,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2020-07-28 21:45:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2020-07-28 21:45:51,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 38 transitions. [2020-07-28 21:45:51,882 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:51,884 INFO L225 Difference]: With dead ends: 174 [2020-07-28 21:45:51,884 INFO L226 Difference]: Without dead ends: 136 [2020-07-28 21:45:51,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:45:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-28 21:45:51,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109. [2020-07-28 21:45:51,913 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:51,913 INFO L82 GeneralOperation]: Start isEquivalent. First operand 136 states. Second operand 109 states. [2020-07-28 21:45:51,913 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 109 states. [2020-07-28 21:45:51,913 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 109 states. [2020-07-28 21:45:51,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,918 INFO L93 Difference]: Finished difference Result 136 states and 288 transitions. [2020-07-28 21:45:51,918 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 288 transitions. [2020-07-28 21:45:51,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,919 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,919 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 136 states. [2020-07-28 21:45:51,919 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 136 states. [2020-07-28 21:45:51,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:51,924 INFO L93 Difference]: Finished difference Result 136 states and 288 transitions. [2020-07-28 21:45:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 288 transitions. [2020-07-28 21:45:51,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:51,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:51,925 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:51,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-28 21:45:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 239 transitions. [2020-07-28 21:45:51,929 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 239 transitions. Word has length 18 [2020-07-28 21:45:51,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:51,929 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 239 transitions. [2020-07-28 21:45:51,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:45:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 239 transitions. [2020-07-28 21:45:51,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:45:51,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:51,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:51,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:45:51,931 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:51,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:51,931 INFO L82 PathProgramCache]: Analyzing trace with hash 645557555, now seen corresponding path program 2 times [2020-07-28 21:45:51,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:51,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56014845] [2020-07-28 21:45:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:52,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {5365#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5365#true} is VALID [2020-07-28 21:45:52,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {5365#true} [163] L770-->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] {5365#true} is VALID [2020-07-28 21:45:52,109 INFO L280 TraceCheckUtils]: 2: Hoare triple {5365#true} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {5365#true} is VALID [2020-07-28 21:45:52,110 INFO L280 TraceCheckUtils]: 3: Hoare triple {5365#true} [165] L772-->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] {5365#true} is VALID [2020-07-28 21:45:52,110 INFO L280 TraceCheckUtils]: 4: Hoare triple {5365#true} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {5365#true} is VALID [2020-07-28 21:45:52,111 INFO L280 TraceCheckUtils]: 5: Hoare triple {5365#true} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5365#true} is VALID [2020-07-28 21:45:52,112 INFO L280 TraceCheckUtils]: 6: Hoare triple {5365#true} [167] L774-->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] {5365#true} is VALID [2020-07-28 21:45:52,112 INFO L280 TraceCheckUtils]: 7: Hoare triple {5365#true} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {5365#true} is VALID [2020-07-28 21:45:52,114 INFO L280 TraceCheckUtils]: 8: Hoare triple {5365#true} [192] P2ENTRY-->L747: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= 2 v_~x~0_28)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~x~0] {5367#(= 2 ~x~0)} is VALID [2020-07-28 21:45:52,115 INFO L280 TraceCheckUtils]: 9: Hoare triple {5367#(= 2 ~x~0)} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5367#(= 2 ~x~0)} is VALID [2020-07-28 21:45:52,115 INFO L280 TraceCheckUtils]: 10: Hoare triple {5367#(= 2 ~x~0)} [190] 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] {5367#(= 2 ~x~0)} is VALID [2020-07-28 21:45:52,116 INFO L280 TraceCheckUtils]: 11: Hoare triple {5367#(= 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] {5368#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,117 INFO L280 TraceCheckUtils]: 12: Hoare triple {5368#(= 2 ~__unbuffered_p0_EAX~0)} [205] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_83 1) v_~__unbuffered_cnt~0_82) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_83} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5368#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,118 INFO L280 TraceCheckUtils]: 13: Hoare triple {5368#(= 2 ~__unbuffered_p0_EAX~0)} [158] L747-->L750: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5368#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,119 INFO L280 TraceCheckUtils]: 14: Hoare triple {5368#(= 2 ~__unbuffered_p0_EAX~0)} [201] L750-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_76 1) v_~__unbuffered_cnt~0_75) (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5368#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,119 INFO L280 TraceCheckUtils]: 15: Hoare triple {5368#(= 2 ~__unbuffered_p0_EAX~0)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~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$tmp_guard0~0] {5368#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,124 INFO L280 TraceCheckUtils]: 16: Hoare triple {5368#(= 2 ~__unbuffered_p0_EAX~0)} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5369#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} is VALID [2020-07-28 21:45:52,125 INFO L280 TraceCheckUtils]: 17: Hoare triple {5369#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5366#false} is VALID [2020-07-28 21:45:52,126 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 21:45:52,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56014845] [2020-07-28 21:45:52,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:52,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:45:52,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71720963] [2020-07-28 21:45:52,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:52,129 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:52,129 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:45:52,156 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:52,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:45:52,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:52,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:45:52,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:45:52,157 INFO L87 Difference]: Start difference. First operand 109 states and 239 transitions. Second operand 5 states. [2020-07-28 21:45:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,334 INFO L93 Difference]: Finished difference Result 176 states and 358 transitions. [2020-07-28 21:45:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:45:52,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2020-07-28 21:45:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2020-07-28 21:45:52,337 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 44 transitions. [2020-07-28 21:45:52,396 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:52,398 INFO L225 Difference]: With dead ends: 176 [2020-07-28 21:45:52,398 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:45:52,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 21:45:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:45:52,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-07-28 21:45:52,439 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:52,439 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 109 states. [2020-07-28 21:45:52,439 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 109 states. [2020-07-28 21:45:52,439 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 109 states. [2020-07-28 21:45:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,444 INFO L93 Difference]: Finished difference Result 124 states and 255 transitions. [2020-07-28 21:45:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 255 transitions. [2020-07-28 21:45:52,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:52,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:52,446 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 124 states. [2020-07-28 21:45:52,446 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 124 states. [2020-07-28 21:45:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,451 INFO L93 Difference]: Finished difference Result 124 states and 255 transitions. [2020-07-28 21:45:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 255 transitions. [2020-07-28 21:45:52,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:52,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:52,452 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:52,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-28 21:45:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 232 transitions. [2020-07-28 21:45:52,457 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 232 transitions. Word has length 18 [2020-07-28 21:45:52,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:52,458 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 232 transitions. [2020-07-28 21:45:52,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:45:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 232 transitions. [2020-07-28 21:45:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:45:52,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:52,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:52,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:45:52,460 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:52,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:52,461 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 3 times [2020-07-28 21:45:52,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:52,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240583194] [2020-07-28 21:45:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:52,542 INFO L280 TraceCheckUtils]: 0: Hoare triple {6020#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6020#true} is VALID [2020-07-28 21:45:52,543 INFO L280 TraceCheckUtils]: 1: Hoare triple {6020#true} [163] L770-->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] {6020#true} is VALID [2020-07-28 21:45:52,543 INFO L280 TraceCheckUtils]: 2: Hoare triple {6020#true} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {6020#true} is VALID [2020-07-28 21:45:52,544 INFO L280 TraceCheckUtils]: 3: Hoare triple {6020#true} [165] L772-->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] {6020#true} is VALID [2020-07-28 21:45:52,544 INFO L280 TraceCheckUtils]: 4: Hoare triple {6020#true} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {6020#true} is VALID [2020-07-28 21:45:52,545 INFO L280 TraceCheckUtils]: 5: Hoare triple {6020#true} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6022#(= 1 ~x~0)} is VALID [2020-07-28 21:45:52,546 INFO L280 TraceCheckUtils]: 6: Hoare triple {6022#(= 1 ~x~0)} [167] L774-->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] {6022#(= 1 ~x~0)} is VALID [2020-07-28 21:45:52,548 INFO L280 TraceCheckUtils]: 7: Hoare triple {6022#(= 1 ~x~0)} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {6022#(= 1 ~x~0)} is VALID [2020-07-28 21:45:52,549 INFO L280 TraceCheckUtils]: 8: Hoare triple {6022#(= 1 ~x~0)} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6022#(= 1 ~x~0)} is VALID [2020-07-28 21:45:52,550 INFO L280 TraceCheckUtils]: 9: Hoare triple {6022#(= 1 ~x~0)} [190] 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] {6022#(= 1 ~x~0)} is VALID [2020-07-28 21:45:52,551 INFO L280 TraceCheckUtils]: 10: Hoare triple {6022#(= 1 ~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] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,552 INFO L280 TraceCheckUtils]: 11: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [192] P2ENTRY-->L747: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= 2 v_~x~0_28)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~x~0] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,553 INFO L280 TraceCheckUtils]: 12: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [205] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_83 1) v_~__unbuffered_cnt~0_82) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_83} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,554 INFO L280 TraceCheckUtils]: 13: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [158] L747-->L750: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,555 INFO L280 TraceCheckUtils]: 14: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [201] L750-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_76 1) v_~__unbuffered_cnt~0_75) (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,556 INFO L280 TraceCheckUtils]: 15: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~main$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] {6023#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:45:52,558 INFO L280 TraceCheckUtils]: 16: Hoare triple {6023#(= 1 ~__unbuffered_p0_EAX~0)} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6024#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} is VALID [2020-07-28 21:45:52,559 INFO L280 TraceCheckUtils]: 17: Hoare triple {6024#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6021#false} is VALID [2020-07-28 21:45:52,560 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 21:45:52,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240583194] [2020-07-28 21:45:52,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:52,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:45:52,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242263120] [2020-07-28 21:45:52,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:52,563 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:52,563 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:45:52,589 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:52,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:45:52,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:45:52,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:45:52,590 INFO L87 Difference]: Start difference. First operand 109 states and 232 transitions. Second operand 5 states. [2020-07-28 21:45:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,777 INFO L93 Difference]: Finished difference Result 175 states and 348 transitions. [2020-07-28 21:45:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 21:45:52,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-07-28 21:45:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 48 transitions. [2020-07-28 21:45:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:45:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 48 transitions. [2020-07-28 21:45:52,780 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 48 transitions. [2020-07-28 21:45:52,840 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:52,841 INFO L225 Difference]: With dead ends: 175 [2020-07-28 21:45:52,841 INFO L226 Difference]: Without dead ends: 55 [2020-07-28 21:45:52,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 21:45:52,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-07-28 21:45:52,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:45:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-07-28 21:45:52,857 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:52,857 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 55 states. [2020-07-28 21:45:52,857 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 55 states. [2020-07-28 21:45:52,858 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 55 states. [2020-07-28 21:45:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,859 INFO L93 Difference]: Finished difference Result 55 states and 99 transitions. [2020-07-28 21:45:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-07-28 21:45:52,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:52,860 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:52,860 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 55 states. [2020-07-28 21:45:52,860 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 55 states. [2020-07-28 21:45:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:52,862 INFO L93 Difference]: Finished difference Result 55 states and 99 transitions. [2020-07-28 21:45:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-07-28 21:45:52,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:52,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:52,863 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:52,863 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-28 21:45:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-07-28 21:45:52,865 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-07-28 21:45:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:52,865 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-07-28 21:45:52,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:45:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-07-28 21:45:52,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:45:52,866 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:45:52,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:45:52,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:45:52,867 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:45:52,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:45:52,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times [2020-07-28 21:45:52,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:45:52,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725030749] [2020-07-28 21:45:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:45:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:45:52,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {6431#true} [220] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= v_~__unbuffered_cnt~0_161 0) (= 0 v_~__unbuffered_p0_EAX~0_43) (= 0 v_~main$tmp_guard0~0_46) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2558~0.base_23|) |v_ULTIMATE.start_main_~#t2558~0.offset_18| 0)) |v_#memory_int_19|) (= 0 v_~main$tmp_guard1~0_38) (= 0 v_~__unbuffered_p1_EAX~0_42) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2558~0.base_23|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2558~0.base_23| 4) |v_#length_21|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23|) 0) (= 0 v_~y~0_49) (< 0 |v_#StackHeapBarrier_14|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2558~0.base_23| 1)) (= 0 v_~x~0_62) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (= 0 |v_ULTIMATE.start_main_~#t2558~0.offset_18|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_38|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_~#t2558~0.base=|v_ULTIMATE.start_main_~#t2558~0.base_23|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_13|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_38, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_46, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start_main_~#t2558~0.offset=|v_ULTIMATE.start_main_~#t2558~0.offset_18|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_42, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_161, ~y~0=v_~y~0_49, ~x~0=v_~x~0_62} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2558~0.base, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2560~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2558~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2560~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6431#true} is VALID [2020-07-28 21:45:52,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {6431#true} [163] L770-->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] {6431#true} is VALID [2020-07-28 21:45:52,946 INFO L280 TraceCheckUtils]: 2: Hoare triple {6431#true} [194] L770-1-->L772: Formula: (and (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9| 1) |v_#valid_27|) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2559~0.base_9| 4)) (= 0 |v_ULTIMATE.start_main_~#t2559~0.offset_9|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2559~0.base_9|) |v_ULTIMATE.start_main_~#t2559~0.offset_9| 1)) |v_#memory_int_11|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2559~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2559~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t2559~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2559~0.offset=|v_ULTIMATE.start_main_~#t2559~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2559~0.base=|v_ULTIMATE.start_main_~#t2559~0.base_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2559~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2559~0.base, #length] {6431#true} is VALID [2020-07-28 21:45:52,946 INFO L280 TraceCheckUtils]: 3: Hoare triple {6431#true} [165] L772-->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] {6431#true} is VALID [2020-07-28 21:45:52,947 INFO L280 TraceCheckUtils]: 4: Hoare triple {6431#true} [208] L772-1-->L774: Formula: (and (= (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11| 1) |v_#valid_35|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) (not (= |v_ULTIMATE.start_main_~#t2560~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2560~0.offset_10|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2560~0.base_11|) |v_ULTIMATE.start_main_~#t2560~0.offset_10| 2)) |v_#memory_int_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2560~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2560~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2560~0.base=|v_ULTIMATE.start_main_~#t2560~0.base_11|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2560~0.offset=|v_ULTIMATE.start_main_~#t2560~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2560~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2560~0.offset, #length] {6431#true} is VALID [2020-07-28 21:45:52,947 INFO L280 TraceCheckUtils]: 5: Hoare triple {6431#true} [167] L774-->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] {6431#true} is VALID [2020-07-28 21:45:52,947 INFO L280 TraceCheckUtils]: 6: Hoare triple {6431#true} [190] 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] {6431#true} is VALID [2020-07-28 21:45:52,947 INFO L280 TraceCheckUtils]: 7: Hoare triple {6431#true} [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] {6431#true} is VALID [2020-07-28 21:45:52,948 INFO L280 TraceCheckUtils]: 8: Hoare triple {6431#true} [180] P1ENTRY-->L730: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_22)) 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_22} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6431#true} is VALID [2020-07-28 21:45:52,948 INFO L280 TraceCheckUtils]: 9: Hoare triple {6431#true} [152] L730-->L735: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {6431#true} is VALID [2020-07-28 21:45:52,948 INFO L280 TraceCheckUtils]: 10: Hoare triple {6431#true} [192] P2ENTRY-->L747: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= 2 v_~x~0_28)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~x~0] {6431#true} is VALID [2020-07-28 21:45:52,948 INFO L280 TraceCheckUtils]: 11: Hoare triple {6431#true} [198] L735-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6431#true} is VALID [2020-07-28 21:45:52,949 INFO L280 TraceCheckUtils]: 12: Hoare triple {6431#true} [205] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_83 1) v_~__unbuffered_cnt~0_82) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_83} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6431#true} is VALID [2020-07-28 21:45:52,950 INFO L280 TraceCheckUtils]: 13: Hoare triple {6431#true} [158] L747-->L750: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6433#(= 1 ~y~0)} is VALID [2020-07-28 21:45:52,951 INFO L280 TraceCheckUtils]: 14: Hoare triple {6433#(= 1 ~y~0)} [201] L750-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_76 1) v_~__unbuffered_cnt~0_75) (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6433#(= 1 ~y~0)} is VALID [2020-07-28 21:45:52,953 INFO L280 TraceCheckUtils]: 15: Hoare triple {6433#(= 1 ~y~0)} [212] L774-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= v_~__unbuffered_cnt~0_106 3) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (= 1 v_~main$tmp_guard0~0_29)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_106, ~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$tmp_guard0~0] {6433#(= 1 ~y~0)} is VALID [2020-07-28 21:45:52,955 INFO L280 TraceCheckUtils]: 16: Hoare triple {6433#(= 1 ~y~0)} [207] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|) (let ((.cse0 (= 2 v_~y~0_34)) (.cse3 (= 1 v_~__unbuffered_p1_EAX~0_31)) (.cse2 (= 2 v_~x~0_38)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_30))) (or (and .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_30) .cse2 .cse3) (and (= 1 v_~main$tmp_guard1~0_30) (or (not .cse0) (not .cse3) (not .cse2) (not .cse1)))))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_30, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_31, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~y~0=v_~y~0_34, ~x~0=v_~x~0_38, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6434#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} is VALID [2020-07-28 21:45:52,957 INFO L280 TraceCheckUtils]: 17: Hoare triple {6434#(not (= 0 |ULTIMATE.start___VERIFIER_assert_#in~expression|))} [204] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_8 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_8)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_8, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6432#false} is VALID [2020-07-28 21:45:52,958 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 21:45:52,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725030749] [2020-07-28 21:45:52,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:45:52,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:45:52,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875650429] [2020-07-28 21:45:52,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:45:52,959 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:45:52,960 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:45:52,993 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:52,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:45:52,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:45:52,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:45:52,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:45:52,993 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-07-28 21:45:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:53,052 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-07-28 21:45:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:45:53,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:45:53,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:45:53,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:45:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:45:53,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:45:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:45:53,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2020-07-28 21:45:53,077 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:45:53,077 INFO L225 Difference]: With dead ends: 54 [2020-07-28 21:45:53,078 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:45:53,078 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 21:45:53,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:45:53,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:45:53,079 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:45:53,079 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:45:53,079 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:45:53,079 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:45:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:53,079 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:45:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:45:53,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:53,080 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:53,080 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:45:53,080 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:45:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:45:53,080 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:45:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:45:53,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:53,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:45:53,081 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:45:53,081 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:45:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:45:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:45:53,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 21:45:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:45:53,082 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:45:53,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:45:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:45:53,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:45:53,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:45:53,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:45:53 BasicIcfg [2020-07-28 21:45:53,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:45:53,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:45:53,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:45:53,090 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:45:53,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:45:47" (3/4) ... [2020-07-28 21:45:53,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:45:53,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:45:53,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:45:53,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:45:53,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:45:53,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:45:53,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:45:53,195 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:45:53,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:45:53,199 INFO L168 Benchmark]: Toolchain (without parser) took 7374.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 242.7 MB). Free memory was 960.2 MB in the beginning and 1.2 GB in the end (delta: -201.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:45:53,205 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:45:53,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -74.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:45:53,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:45:53,207 INFO L168 Benchmark]: Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:45:53,211 INFO L168 Benchmark]: RCFGBuilder took 538.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:45:53,212 INFO L168 Benchmark]: TraceAbstraction took 5916.48 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -161.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:45:53,212 INFO L168 Benchmark]: Witness Printer took 106.18 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-07-28 21:45:53,218 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 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 714.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -74.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 538.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5916.48 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -161.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 106.18 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 77 ProgramPointsBefore, 32 ProgramPointsAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 648 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2365 CheckedPairsTotal, 53 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: 5.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 162 SDtfs, 105 SDslu, 267 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 42 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...