./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe025_pso.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/safe025_pso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 816adaab6d572afe5373a0c12b2bd8896022d9b1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:41:05,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:41:05,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:41:05,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:41:05,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:41:05,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:41:05,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:41:05,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:41:05,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:41:05,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:41:05,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:41:05,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:41:05,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:41:05,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:41:05,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:41:05,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:41:05,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:41:05,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:41:05,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:41:05,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:41:05,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:41:05,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:41:05,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:41:05,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:41:05,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:41:05,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:41:05,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:41:05,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:41:05,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:41:05,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:41:05,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:41:05,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:41:05,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:41:05,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:41:05,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:41:05,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:41:05,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:41:05,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:41:05,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:41:05,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:41:05,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:41:05,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:41:05,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:41:05,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:41:05,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:41:05,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:41:05,423 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:41:05,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:41:05,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:41:05,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:41:05,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:41:05,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:41:05,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:41:05,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:41:05,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:41:05,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:41:05,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:41:05,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:41:05,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:41:05,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:41:05,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:41:05,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:41:05,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:41:05,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:41:05,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:41:05,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:41:05,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:41:05,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:41:05,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:41:05,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:41:05,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:41:05,433 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 -> 816adaab6d572afe5373a0c12b2bd8896022d9b1 [2020-07-28 21:41:05,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:41:05,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:41:05,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:41:05,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:41:05,747 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:41:05,748 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i [2020-07-28 21:41:05,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa11d540/f135461331bc446d9f5f2ff1aeebbe69/FLAGadb1a5c89 [2020-07-28 21:41:06,291 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:41:06,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_pso.opt.i [2020-07-28 21:41:06,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa11d540/f135461331bc446d9f5f2ff1aeebbe69/FLAGadb1a5c89 [2020-07-28 21:41:06,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa11d540/f135461331bc446d9f5f2ff1aeebbe69 [2020-07-28 21:41:06,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:41:06,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:41:06,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:41:06,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:41:06,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:41:06,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:41:06" (1/1) ... [2020-07-28 21:41:06,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0bc512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:06, skipping insertion in model container [2020-07-28 21:41:06,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:41:06" (1/1) ... [2020-07-28 21:41:06,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:41:06,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:41:07,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:41:07,041 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:41:07,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:41:07,264 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:41:07,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07 WrapperNode [2020-07-28 21:41:07,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:41:07,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:41:07,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:41:07,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:41:07,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:41:07,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:41:07,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:41:07,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:41:07,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (1/1) ... [2020-07-28 21:41:07,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:41:07,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:41:07,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:41:07,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:41:07,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (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 21:41:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:41:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:41:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:41:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:41:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:41:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:41:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:41:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:41:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:41:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:41:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:41:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:41:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:41:07,439 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 21:41:07,996 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:41:07,997 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:41:08,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:41:08 BoogieIcfgContainer [2020-07-28 21:41:08,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:41:08,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:41:08,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:41:08,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:41:08,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:41:06" (1/3) ... [2020-07-28 21:41:08,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd01474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:41:08, skipping insertion in model container [2020-07-28 21:41:08,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:41:07" (2/3) ... [2020-07-28 21:41:08,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd01474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:41:08, skipping insertion in model container [2020-07-28 21:41:08,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:41:08" (3/3) ... [2020-07-28 21:41:08,015 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2020-07-28 21:41:08,026 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:41:08,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:41:08,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:41:08,035 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:41:08,068 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,068 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,074 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,075 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:41:08,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:41:08,205 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:41:08,205 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:41:08,205 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:41:08,206 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:41:08,206 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:41:08,206 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:41:08,206 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:41:08,207 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:41:08,243 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:41:08,246 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:41:08,293 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:41:08,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:41:08,298 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:41:08,301 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:41:08,344 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:41:08,344 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:41:08,345 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:41:08,349 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:41:08,350 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:41:10,851 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2768 [2020-07-28 21:41:10,851 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:41:10,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:41:10,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:41:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:41:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:41:10,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:10,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:10,938 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:10,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-07-28 21:41:10,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:10,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901971799] [2020-07-28 21:41:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:11,238 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(= 0 ~x~0)} [165] 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] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,240 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(= 0 ~x~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,241 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(= 0 ~x~0)} [167] 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] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,242 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(= 0 ~x~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,243 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(= 0 ~x~0)} [169] 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] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,245 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(= 0 ~x~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(= 0 ~x~0)} is VALID [2020-07-28 21:41:11,247 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(= 0 ~x~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:41:11,249 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 21:41:11,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901971799] [2020-07-28 21:41:11,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:11,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:41:11,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812853160] [2020-07-28 21:41:11,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:41:11,260 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:11,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:41:11,286 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 21:41:11,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:41:11,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:11,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:41:11,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:11,301 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:41:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:11,454 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:41:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:41:11,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:41:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:11,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:41:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:41:11,464 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 31 transitions. [2020-07-28 21:41:11,520 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:11,563 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:41:11,564 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:41:11,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:41:11,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:41:11,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:11,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:11,683 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:11,683 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:11,717 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:41:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:11,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:11,728 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:11,728 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:11,728 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:11,752 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:41:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:11,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:11,757 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:11,757 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:11,757 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:41:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:41:11,775 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:41:11,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:11,776 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:41:11,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:41:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:11,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:41:11,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:11,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:11,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:41:11,779 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:11,780 INFO L82 PathProgramCache]: Analyzing trace with hash -225372059, now seen corresponding path program 1 times [2020-07-28 21:41:11,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:11,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097294046] [2020-07-28 21:41:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:11,919 INFO L280 TraceCheckUtils]: 0: Hoare triple {1836#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1836#true} is VALID [2020-07-28 21:41:11,919 INFO L280 TraceCheckUtils]: 1: Hoare triple {1836#true} [165] 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] {1836#true} is VALID [2020-07-28 21:41:11,920 INFO L280 TraceCheckUtils]: 2: Hoare triple {1836#true} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {1836#true} is VALID [2020-07-28 21:41:11,920 INFO L280 TraceCheckUtils]: 3: Hoare triple {1836#true} [167] 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] {1836#true} is VALID [2020-07-28 21:41:11,920 INFO L280 TraceCheckUtils]: 4: Hoare triple {1836#true} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1836#true} is VALID [2020-07-28 21:41:11,921 INFO L280 TraceCheckUtils]: 5: Hoare triple {1836#true} [169] 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] {1836#true} is VALID [2020-07-28 21:41:11,921 INFO L280 TraceCheckUtils]: 6: Hoare triple {1836#true} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1836#true} is VALID [2020-07-28 21:41:11,923 INFO L280 TraceCheckUtils]: 7: Hoare triple {1836#true} [185] P1ENTRY-->L732: Formula: (and (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|) (= 1 v_~x~0_17)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1838#(= 1 ~x~0)} is VALID [2020-07-28 21:41:11,924 INFO L280 TraceCheckUtils]: 8: Hoare triple {1838#(= 1 ~x~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1837#false} is VALID [2020-07-28 21:41:11,924 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 21:41:11,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097294046] [2020-07-28 21:41:11,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:11,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:41:11,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056905664] [2020-07-28 21:41:11,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:41:11,927 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:11,927 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:41:11,939 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 21:41:11,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:41:11,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:11,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:41:11,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:11,940 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-07-28 21:41:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,005 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:41:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:41:12,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:41:12,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:41:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:41:12,008 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:41:12,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:12,051 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:41:12,051 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:41:12,052 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 21:41:12,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:41:12,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:41:12,119 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:12,119 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:41:12,119 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:41:12,120 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:41:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,138 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:41:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:41:12,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,139 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,140 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:41:12,140 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:41:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,158 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:41:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:41:12,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,159 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,159 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:12,159 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:41:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:41:12,176 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-07-28 21:41:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:12,176 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:41:12,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:41:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:41:12,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:41:12,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:12,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:12,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:41:12,177 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:12,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:12,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1603398907, now seen corresponding path program 1 times [2020-07-28 21:41:12,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:12,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131015834] [2020-07-28 21:41:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:12,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {2851#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [165] 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] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,233 INFO L280 TraceCheckUtils]: 3: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [167] 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] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,234 INFO L280 TraceCheckUtils]: 4: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,235 INFO L280 TraceCheckUtils]: 5: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [169] 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] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,235 INFO L280 TraceCheckUtils]: 6: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,236 INFO L280 TraceCheckUtils]: 7: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,237 INFO L280 TraceCheckUtils]: 8: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {2853#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:12,238 INFO L280 TraceCheckUtils]: 9: Hoare triple {2853#(= 0 ~__unbuffered_p2_EAX~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2852#false} is VALID [2020-07-28 21:41:12,240 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 21:41:12,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131015834] [2020-07-28 21:41:12,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:12,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:41:12,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096541795] [2020-07-28 21:41:12,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:41:12,241 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:12,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:41:12,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:12,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:41:12,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:12,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:41:12,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:12,255 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:41:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,296 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:41:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:41:12,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:41:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:41:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:41:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:41:12,298 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:41:12,327 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:12,332 INFO L225 Difference]: With dead ends: 194 [2020-07-28 21:41:12,332 INFO L226 Difference]: Without dead ends: 194 [2020-07-28 21:41:12,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-07-28 21:41:12,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-07-28 21:41:12,390 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:12,391 INFO L82 GeneralOperation]: Start isEquivalent. First operand 194 states. Second operand 194 states. [2020-07-28 21:41:12,391 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:41:12,391 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:41:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,402 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:41:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:41:12,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,403 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,403 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:41:12,403 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:41:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,414 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:41:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:41:12,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,415 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,415 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:12,415 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:12,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-28 21:41:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-07-28 21:41:12,426 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-07-28 21:41:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:12,427 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-07-28 21:41:12,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:41:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:41:12,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:41:12,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:12,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:12,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:41:12,428 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:12,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:12,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1834242640, now seen corresponding path program 1 times [2020-07-28 21:41:12,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:12,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406395047] [2020-07-28 21:41:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:12,538 INFO L280 TraceCheckUtils]: 0: Hoare triple {3826#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,540 INFO L280 TraceCheckUtils]: 1: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [165] 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] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,541 INFO L280 TraceCheckUtils]: 2: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [167] 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] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,542 INFO L280 TraceCheckUtils]: 4: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,543 INFO L280 TraceCheckUtils]: 5: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [169] 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] {3828#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,545 INFO L280 TraceCheckUtils]: 6: Hoare triple {3828#(= 0 ~__unbuffered_cnt~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} 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] {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,546 INFO L280 TraceCheckUtils]: 7: Hoare triple {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,547 INFO L280 TraceCheckUtils]: 8: Hoare triple {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,548 INFO L280 TraceCheckUtils]: 9: Hoare triple {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,549 INFO L280 TraceCheckUtils]: 10: Hoare triple {3829#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3827#false} is VALID [2020-07-28 21:41:12,551 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 21:41:12,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406395047] [2020-07-28 21:41:12,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:12,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:41:12,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097188325] [2020-07-28 21:41:12,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:41:12,553 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:12,553 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:12,569 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:12,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:12,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:12,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:12,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:12,570 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-07-28 21:41:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,694 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-07-28 21:41:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:41:12,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:41:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:41:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:41:12,697 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:41:12,765 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:12,769 INFO L225 Difference]: With dead ends: 225 [2020-07-28 21:41:12,769 INFO L226 Difference]: Without dead ends: 161 [2020-07-28 21:41:12,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:41:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-28 21:41:12,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-07-28 21:41:12,813 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:12,813 INFO L82 GeneralOperation]: Start isEquivalent. First operand 161 states. Second operand 161 states. [2020-07-28 21:41:12,814 INFO L74 IsIncluded]: Start isIncluded. First operand 161 states. Second operand 161 states. [2020-07-28 21:41:12,814 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 161 states. [2020-07-28 21:41:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,822 INFO L93 Difference]: Finished difference Result 161 states and 386 transitions. [2020-07-28 21:41:12,823 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-07-28 21:41:12,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,823 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,824 INFO L74 IsIncluded]: Start isIncluded. First operand 161 states. Second operand 161 states. [2020-07-28 21:41:12,824 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 161 states. [2020-07-28 21:41:12,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:12,830 INFO L93 Difference]: Finished difference Result 161 states and 386 transitions. [2020-07-28 21:41:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-07-28 21:41:12,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:12,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:12,831 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:12,831 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-28 21:41:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-07-28 21:41:12,836 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-07-28 21:41:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:12,837 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-07-28 21:41:12,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-07-28 21:41:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:41:12,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:12,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:12,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:41:12,838 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:12,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1941611660, now seen corresponding path program 1 times [2020-07-28 21:41:12,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:12,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254309892] [2020-07-28 21:41:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:12,953 INFO L280 TraceCheckUtils]: 0: Hoare triple {4703#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,954 INFO L280 TraceCheckUtils]: 1: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [165] 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] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,955 INFO L280 TraceCheckUtils]: 2: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,956 INFO L280 TraceCheckUtils]: 3: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [167] 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] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,956 INFO L280 TraceCheckUtils]: 4: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,957 INFO L280 TraceCheckUtils]: 5: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [169] 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] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,958 INFO L280 TraceCheckUtils]: 6: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,958 INFO L280 TraceCheckUtils]: 7: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4705#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:12,959 INFO L280 TraceCheckUtils]: 8: Hoare triple {4705#(= 0 ~__unbuffered_cnt~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4706#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:12,961 INFO L280 TraceCheckUtils]: 9: Hoare triple {4706#(<= ~__unbuffered_cnt~0 1)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4707#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,962 INFO L280 TraceCheckUtils]: 10: Hoare triple {4707#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4707#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:12,963 INFO L280 TraceCheckUtils]: 11: Hoare triple {4707#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4704#false} is VALID [2020-07-28 21:41:12,964 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 21:41:12,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254309892] [2020-07-28 21:41:12,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:12,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:12,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999599698] [2020-07-28 21:41:12,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:41:12,965 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:12,965 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:41:12,984 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 21:41:12,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:41:12,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:12,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:41:12,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:41:12,985 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 5 states. [2020-07-28 21:41:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,121 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-07-28 21:41:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:41:13,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:41:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:41:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:41:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:41:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:41:13,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 62 transitions. [2020-07-28 21:41:13,191 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:13,195 INFO L225 Difference]: With dead ends: 160 [2020-07-28 21:41:13,195 INFO L226 Difference]: Without dead ends: 123 [2020-07-28 21:41:13,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:41:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-28 21:41:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-28 21:41:13,221 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:13,221 INFO L82 GeneralOperation]: Start isEquivalent. First operand 123 states. Second operand 123 states. [2020-07-28 21:41:13,221 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:41:13,222 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:41:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,225 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:41:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:41:13,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:13,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:13,225 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:41:13,226 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:41:13,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,229 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:41:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:41:13,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:13,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:13,229 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:13,230 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-28 21:41:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-07-28 21:41:13,232 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-07-28 21:41:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:13,233 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-07-28 21:41:13,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:41:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:41:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:41:13,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:13,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:13,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:41:13,234 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:13,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:13,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1911316559, now seen corresponding path program 1 times [2020-07-28 21:41:13,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:13,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237611291] [2020-07-28 21:41:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:13,350 INFO L280 TraceCheckUtils]: 0: Hoare triple {5364#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,351 INFO L280 TraceCheckUtils]: 1: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [165] 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] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,353 INFO L280 TraceCheckUtils]: 2: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,354 INFO L280 TraceCheckUtils]: 3: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [167] 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] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,355 INFO L280 TraceCheckUtils]: 4: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,356 INFO L280 TraceCheckUtils]: 5: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [169] 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] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,356 INFO L280 TraceCheckUtils]: 6: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,357 INFO L280 TraceCheckUtils]: 7: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5366#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:13,358 INFO L280 TraceCheckUtils]: 8: Hoare triple {5366#(= 0 ~__unbuffered_cnt~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5367#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:13,358 INFO L280 TraceCheckUtils]: 9: Hoare triple {5367#(<= ~__unbuffered_cnt~0 1)} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5367#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:13,359 INFO L280 TraceCheckUtils]: 10: Hoare triple {5367#(<= ~__unbuffered_cnt~0 1)} [160] L747-->L750: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {5367#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:13,360 INFO L280 TraceCheckUtils]: 11: Hoare triple {5367#(<= ~__unbuffered_cnt~0 1)} [207] L750-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5368#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:41:13,361 INFO L280 TraceCheckUtils]: 12: Hoare triple {5368#(<= ~__unbuffered_cnt~0 2)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5369#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:41:13,362 INFO L280 TraceCheckUtils]: 13: Hoare triple {5369#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5365#false} is VALID [2020-07-28 21:41:13,363 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 21:41:13,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237611291] [2020-07-28 21:41:13,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:13,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:41:13,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609500192] [2020-07-28 21:41:13,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:41:13,364 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:13,364 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:41:13,384 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:13,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:41:13,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:13,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:41:13,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:41:13,386 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 6 states. [2020-07-28 21:41:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,580 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-07-28 21:41:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:41:13,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:41:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:41:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2020-07-28 21:41:13,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:41:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2020-07-28 21:41:13,583 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 53 transitions. [2020-07-28 21:41:13,657 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:13,659 INFO L225 Difference]: With dead ends: 118 [2020-07-28 21:41:13,659 INFO L226 Difference]: Without dead ends: 108 [2020-07-28 21:41:13,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:41:13,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-07-28 21:41:13,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-07-28 21:41:13,691 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:13,691 INFO L82 GeneralOperation]: Start isEquivalent. First operand 108 states. Second operand 108 states. [2020-07-28 21:41:13,691 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 108 states. [2020-07-28 21:41:13,691 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 108 states. [2020-07-28 21:41:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,695 INFO L93 Difference]: Finished difference Result 108 states and 242 transitions. [2020-07-28 21:41:13,695 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-07-28 21:41:13,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:13,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:13,696 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 108 states. [2020-07-28 21:41:13,696 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 108 states. [2020-07-28 21:41:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,699 INFO L93 Difference]: Finished difference Result 108 states and 242 transitions. [2020-07-28 21:41:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-07-28 21:41:13,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:13,700 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:13,700 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:13,701 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-07-28 21:41:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-07-28 21:41:13,704 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-07-28 21:41:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:13,704 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-07-28 21:41:13,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:41:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-07-28 21:41:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:13,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:13,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:13,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:41:13,706 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:13,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:13,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1074918836, now seen corresponding path program 1 times [2020-07-28 21:41:13,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:13,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596769295] [2020-07-28 21:41:13,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:13,811 INFO L280 TraceCheckUtils]: 0: Hoare triple {5924#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5924#true} is VALID [2020-07-28 21:41:13,811 INFO L280 TraceCheckUtils]: 1: Hoare triple {5924#true} [165] 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] {5924#true} is VALID [2020-07-28 21:41:13,812 INFO L280 TraceCheckUtils]: 2: Hoare triple {5924#true} [174] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_4) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 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_4, 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] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,813 INFO L280 TraceCheckUtils]: 3: Hoare triple {5926#(= 1 ~y~0)} [148] L715-->L720: 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] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,813 INFO L280 TraceCheckUtils]: 4: Hoare triple {5926#(= 1 ~y~0)} [211] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|) (= v_~__unbuffered_cnt~0_123 (+ v_~__unbuffered_cnt~0_124 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_124} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_123} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,814 INFO L280 TraceCheckUtils]: 5: Hoare triple {5926#(= 1 ~y~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,815 INFO L280 TraceCheckUtils]: 6: Hoare triple {5926#(= 1 ~y~0)} [167] 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] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,815 INFO L280 TraceCheckUtils]: 7: Hoare triple {5926#(= 1 ~y~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,816 INFO L280 TraceCheckUtils]: 8: Hoare triple {5926#(= 1 ~y~0)} [169] 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] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,817 INFO L280 TraceCheckUtils]: 9: Hoare triple {5926#(= 1 ~y~0)} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,817 INFO L280 TraceCheckUtils]: 10: Hoare triple {5926#(= 1 ~y~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,818 INFO L280 TraceCheckUtils]: 11: Hoare triple {5926#(= 1 ~y~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,819 INFO L280 TraceCheckUtils]: 12: Hoare triple {5926#(= 1 ~y~0)} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5926#(= 1 ~y~0)} is VALID [2020-07-28 21:41:13,819 INFO L280 TraceCheckUtils]: 13: Hoare triple {5926#(= 1 ~y~0)} [160] L747-->L750: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {5927#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:13,820 INFO L280 TraceCheckUtils]: 14: Hoare triple {5927#(= 1 ~__unbuffered_p2_EBX~0)} [207] L750-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5927#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:13,821 INFO L280 TraceCheckUtils]: 15: Hoare triple {5927#(= 1 ~__unbuffered_p2_EBX~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5927#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:13,823 INFO L280 TraceCheckUtils]: 16: Hoare triple {5927#(= 1 ~__unbuffered_p2_EBX~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5925#false} is VALID [2020-07-28 21:41:13,825 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 21:41:13,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596769295] [2020-07-28 21:41:13,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:13,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:13,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561599305] [2020-07-28 21:41:13,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:13,829 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:13,829 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:13,852 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:13,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:13,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:13,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:13,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:13,854 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-07-28 21:41:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,941 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-07-28 21:41:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:13,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:41:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:41:13,942 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 35 transitions. [2020-07-28 21:41:13,983 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:13,984 INFO L225 Difference]: With dead ends: 133 [2020-07-28 21:41:13,984 INFO L226 Difference]: Without dead ends: 54 [2020-07-28 21:41:13,984 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 21:41:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-28 21:41:13,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-28 21:41:13,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:13,996 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:13,996 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:13,997 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:13,998 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-07-28 21:41:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:13,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:13,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:13,999 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:13,999 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:14,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,000 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-07-28 21:41:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:14,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,000 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,001 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:14,001 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-28 21:41:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-07-28 21:41:14,002 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-07-28 21:41:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:14,002 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-07-28 21:41:14,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:14,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:14,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:14,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:14,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:41:14,003 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:14,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1637147722, now seen corresponding path program 2 times [2020-07-28 21:41:14,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:14,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659415869] [2020-07-28 21:41:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:14,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {6281#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6281#true} is VALID [2020-07-28 21:41:14,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {6281#true} [165] 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] {6281#true} is VALID [2020-07-28 21:41:14,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {6281#true} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {6281#true} is VALID [2020-07-28 21:41:14,067 INFO L280 TraceCheckUtils]: 3: Hoare triple {6281#true} [167] 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] {6281#true} is VALID [2020-07-28 21:41:14,068 INFO L280 TraceCheckUtils]: 4: Hoare triple {6281#true} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6281#true} is VALID [2020-07-28 21:41:14,068 INFO L280 TraceCheckUtils]: 5: Hoare triple {6281#true} [169] 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] {6281#true} is VALID [2020-07-28 21:41:14,068 INFO L280 TraceCheckUtils]: 6: Hoare triple {6281#true} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6281#true} is VALID [2020-07-28 21:41:14,069 INFO L280 TraceCheckUtils]: 7: Hoare triple {6281#true} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6283#(= 2 ~x~0)} is VALID [2020-07-28 21:41:14,070 INFO L280 TraceCheckUtils]: 8: Hoare triple {6283#(= 2 ~x~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6283#(= 2 ~x~0)} is VALID [2020-07-28 21:41:14,070 INFO L280 TraceCheckUtils]: 9: Hoare triple {6283#(= 2 ~x~0)} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6283#(= 2 ~x~0)} is VALID [2020-07-28 21:41:14,071 INFO L280 TraceCheckUtils]: 10: Hoare triple {6283#(= 2 ~x~0)} [160] L747-->L750: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {6283#(= 2 ~x~0)} is VALID [2020-07-28 21:41:14,071 INFO L280 TraceCheckUtils]: 11: Hoare triple {6283#(= 2 ~x~0)} [174] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_4) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 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_4, 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] {6283#(= 2 ~x~0)} is VALID [2020-07-28 21:41:14,072 INFO L280 TraceCheckUtils]: 12: Hoare triple {6283#(= 2 ~x~0)} [148] L715-->L720: 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] {6284#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,073 INFO L280 TraceCheckUtils]: 13: Hoare triple {6284#(= 2 ~__unbuffered_p0_EAX~0)} [211] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|) (= v_~__unbuffered_cnt~0_123 (+ v_~__unbuffered_cnt~0_124 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_124} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_123} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6284#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,074 INFO L280 TraceCheckUtils]: 14: Hoare triple {6284#(= 2 ~__unbuffered_p0_EAX~0)} [207] L750-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6284#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,074 INFO L280 TraceCheckUtils]: 15: Hoare triple {6284#(= 2 ~__unbuffered_p0_EAX~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6284#(= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,075 INFO L280 TraceCheckUtils]: 16: Hoare triple {6284#(= 2 ~__unbuffered_p0_EAX~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6282#false} is VALID [2020-07-28 21:41:14,076 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 21:41:14,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659415869] [2020-07-28 21:41:14,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:14,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:14,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290850164] [2020-07-28 21:41:14,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,078 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:14,078 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:14,096 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:14,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:14,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:14,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:14,098 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-07-28 21:41:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,170 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2020-07-28 21:41:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:14,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:14,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:41:14,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:41:14,172 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:41:14,208 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,209 INFO L225 Difference]: With dead ends: 63 [2020-07-28 21:41:14,209 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 21:41:14,209 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 21:41:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 21:41:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 21:41:14,222 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:14,222 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 21:41:14,222 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:41:14,222 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:41:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,223 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:41:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:41:14,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,224 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,224 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:41:14,225 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:41:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,226 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:41:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:41:14,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,226 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,226 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:14,227 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 21:41:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-07-28 21:41:14,228 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-07-28 21:41:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:14,229 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-07-28 21:41:14,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:41:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:14,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:14,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:14,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:41:14,230 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:14,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1965606506, now seen corresponding path program 3 times [2020-07-28 21:41:14,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:14,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589498601] [2020-07-28 21:41:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:14,309 INFO L280 TraceCheckUtils]: 0: Hoare triple {6504#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6504#true} is VALID [2020-07-28 21:41:14,310 INFO L280 TraceCheckUtils]: 1: Hoare triple {6504#true} [165] 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] {6504#true} is VALID [2020-07-28 21:41:14,310 INFO L280 TraceCheckUtils]: 2: Hoare triple {6504#true} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {6504#true} is VALID [2020-07-28 21:41:14,310 INFO L280 TraceCheckUtils]: 3: Hoare triple {6504#true} [167] 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] {6504#true} is VALID [2020-07-28 21:41:14,311 INFO L280 TraceCheckUtils]: 4: Hoare triple {6504#true} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6504#true} is VALID [2020-07-28 21:41:14,311 INFO L280 TraceCheckUtils]: 5: Hoare triple {6504#true} [169] 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] {6504#true} is VALID [2020-07-28 21:41:14,312 INFO L280 TraceCheckUtils]: 6: Hoare triple {6504#true} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6506#(= 1 ~x~0)} is VALID [2020-07-28 21:41:14,313 INFO L280 TraceCheckUtils]: 7: Hoare triple {6506#(= 1 ~x~0)} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6506#(= 1 ~x~0)} is VALID [2020-07-28 21:41:14,314 INFO L280 TraceCheckUtils]: 8: Hoare triple {6506#(= 1 ~x~0)} [160] L747-->L750: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {6506#(= 1 ~x~0)} is VALID [2020-07-28 21:41:14,318 INFO L280 TraceCheckUtils]: 9: Hoare triple {6506#(= 1 ~x~0)} [174] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_4) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 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_4, 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] {6506#(= 1 ~x~0)} is VALID [2020-07-28 21:41:14,319 INFO L280 TraceCheckUtils]: 10: Hoare triple {6506#(= 1 ~x~0)} [148] L715-->L720: 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] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,320 INFO L280 TraceCheckUtils]: 11: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [211] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|) (= v_~__unbuffered_cnt~0_123 (+ v_~__unbuffered_cnt~0_124 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_124} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_123} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,320 INFO L280 TraceCheckUtils]: 12: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,321 INFO L280 TraceCheckUtils]: 13: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,322 INFO L280 TraceCheckUtils]: 14: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [207] L750-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,322 INFO L280 TraceCheckUtils]: 15: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6507#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:14,323 INFO L280 TraceCheckUtils]: 16: Hoare triple {6507#(= 1 ~__unbuffered_p0_EAX~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6505#false} is VALID [2020-07-28 21:41:14,324 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 21:41:14,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589498601] [2020-07-28 21:41:14,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:14,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:14,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171985774] [2020-07-28 21:41:14,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,326 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:14,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:14,345 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:14,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:14,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:14,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:14,346 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-07-28 21:41:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,413 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-07-28 21:41:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:41:14,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-07-28 21:41:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-07-28 21:41:14,415 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 33 transitions. [2020-07-28 21:41:14,449 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,450 INFO L225 Difference]: With dead ends: 51 [2020-07-28 21:41:14,450 INFO L226 Difference]: Without dead ends: 30 [2020-07-28 21:41:14,451 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 21:41:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-28 21:41:14,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-28 21:41:14,459 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:14,459 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-28 21:41:14,459 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-28 21:41:14,459 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-28 21:41:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,460 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-07-28 21:41:14,461 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:41:14,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,461 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-28 21:41:14,461 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-28 21:41:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,462 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-07-28 21:41:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:41:14,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,463 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:14,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:14,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-28 21:41:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-07-28 21:41:14,464 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-07-28 21:41:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:14,465 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-07-28 21:41:14,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:41:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:14,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:14,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:14,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:41:14,466 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:14,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1156169136, now seen corresponding path program 4 times [2020-07-28 21:41:14,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:14,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880260618] [2020-07-28 21:41:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:14,517 INFO L280 TraceCheckUtils]: 0: Hoare triple {6683#true} [225] ULTIMATE.startENTRY-->L770: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2378~0.base_24| 4) |v_#length_21|) (= 0 v_~main$tmp_guard0~0_41) (= 0 |v_ULTIMATE.start_main_~#t2378~0.offset_17|) (= v_~__unbuffered_p2_EBX~0_48 0) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) |v_ULTIMATE.start_main_~#t2378~0.offset_17| 0)) |v_#memory_int_15|) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~y~0_30) (= 0 |v_#NULL.offset_4|) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2378~0.base_24|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= v_~__unbuffered_cnt~0_188 0) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 v_~x~0_55) (= (store .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24| 1) |v_#valid_56|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2378~0.base_24|)) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_39))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_18|, ULTIMATE.start_main_~#t2378~0.base=|v_ULTIMATE.start_main_~#t2378~0.base_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_20|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_18|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_39, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_41, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_main_~#t2378~0.offset=|v_ULTIMATE.start_main_~#t2378~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_188, ~y~0=v_~y~0_30, ~x~0=v_~x~0_55} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.offset, ULTIMATE.start_main_~#t2378~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2379~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2380~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2378~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,518 INFO L280 TraceCheckUtils]: 1: Hoare triple {6685#(= 0 ~x~0)} [165] 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] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,518 INFO L280 TraceCheckUtils]: 2: Hoare triple {6685#(= 0 ~x~0)} [206] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2379~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= 0 (select |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2379~0.base_12| 4)) (= (store |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12| (store (select |v_#memory_int_8| |v_ULTIMATE.start_main_~#t2379~0.base_12|) |v_ULTIMATE.start_main_~#t2379~0.offset_10| 1)) |v_#memory_int_7|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2379~0.base_12|) (= (store |v_#valid_35| |v_ULTIMATE.start_main_~#t2379~0.base_12| 1) |v_#valid_34|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_8|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2379~0.offset=|v_ULTIMATE.start_main_~#t2379~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~#t2379~0.base=|v_ULTIMATE.start_main_~#t2379~0.base_12|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2379~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2379~0.base, #length] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,519 INFO L280 TraceCheckUtils]: 3: Hoare triple {6685#(= 0 ~x~0)} [167] 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] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,520 INFO L280 TraceCheckUtils]: 4: Hoare triple {6685#(= 0 ~x~0)} [208] L772-1-->L774: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2380~0.base_12|) |v_ULTIMATE.start_main_~#t2380~0.offset_10| 2))) (= 0 |v_ULTIMATE.start_main_~#t2380~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2380~0.base_12|) (= |v_#valid_36| (store |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12| 1)) (= 0 (select |v_#valid_37| |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2380~0.base_12|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2380~0.base_12| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2380~0.base=|v_ULTIMATE.start_main_~#t2380~0.base_12|, ULTIMATE.start_main_~#t2380~0.offset=|v_ULTIMATE.start_main_~#t2380~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2380~0.base, ULTIMATE.start_main_~#t2380~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,521 INFO L280 TraceCheckUtils]: 5: Hoare triple {6685#(= 0 ~x~0)} [169] 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] {6685#(= 0 ~x~0)} is VALID [2020-07-28 21:41:14,521 INFO L280 TraceCheckUtils]: 6: Hoare triple {6685#(= 0 ~x~0)} [175] P2ENTRY-->L747: Formula: (and (= v_~__unbuffered_p2_EAX~0_6 v_~x~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_6, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,522 INFO L280 TraceCheckUtils]: 7: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [160] L747-->L750: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,523 INFO L280 TraceCheckUtils]: 8: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [174] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_4) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 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_4, 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] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,524 INFO L280 TraceCheckUtils]: 9: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [148] L715-->L720: 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] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,524 INFO L280 TraceCheckUtils]: 10: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [211] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|) (= v_~__unbuffered_cnt~0_123 (+ v_~__unbuffered_cnt~0_124 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_124} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_123} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,525 INFO L280 TraceCheckUtils]: 11: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [185] P1ENTRY-->L732: 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_17)) 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_17} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,526 INFO L280 TraceCheckUtils]: 12: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [154] L732-->L735: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,526 INFO L280 TraceCheckUtils]: 13: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [202] L735-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_77 1) v_~__unbuffered_cnt~0_76) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_77} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_76, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,527 INFO L280 TraceCheckUtils]: 14: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [207] L750-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,528 INFO L280 TraceCheckUtils]: 15: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [216] L774-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_14 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (= (mod v_~main$tmp_guard0~0_31 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|) (let ((.cse0 (= v_~__unbuffered_cnt~0_134 3))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_31)) (and .cse0 (= 1 v_~main$tmp_guard0~0_31))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_20|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_14, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_134, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_31} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6686#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:14,529 INFO L280 TraceCheckUtils]: 16: Hoare triple {6686#(= 0 ~__unbuffered_p2_EAX~0)} [221] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~__unbuffered_p2_EAX~0_30) (= v_ULTIMATE.start___VERIFIER_assert_~expression_19 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard1~0_30) (= (mod v_~main$tmp_guard1~0_30 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_23)) (= v_~__unbuffered_p2_EBX~0_36 0) (= 2 v_~x~0_46)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_36, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_23, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_30, ~x~0=v_~x~0_46, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6684#false} is VALID [2020-07-28 21:41:14,529 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 21:41:14,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880260618] [2020-07-28 21:41:14,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:14,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:41:14,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192886725] [2020-07-28 21:41:14,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,531 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:14,531 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:14,551 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:14,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:14,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:14,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:14,552 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-07-28 21:41:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,591 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:41:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:14,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-28 21:41:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-28 21:41:14,593 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 19 transitions. [2020-07-28 21:41:14,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:14,622 INFO L225 Difference]: With dead ends: 29 [2020-07-28 21:41:14,622 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:41:14,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:41:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:41:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:41:14,623 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:14,624 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:14,624 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:14,624 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,625 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:41:14,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:14,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,626 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:14,626 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:14,626 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:41:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:14,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,627 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:14,627 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:14,628 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:41:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:41:14,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:41:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:14,629 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:41:14,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:14,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:14,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:41:14,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:41:14 BasicIcfg [2020-07-28 21:41:14,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:41:14,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:41:14,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:41:14,635 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:41:14,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:41:08" (3/4) ... [2020-07-28 21:41:14,640 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:41:14,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:41:14,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:41:14,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:41:14,652 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:41:14,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:41:14,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:41:14,707 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:41:14,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:41:14,712 INFO L168 Benchmark]: Toolchain (without parser) took 8173.87 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.1 MB). Free memory was 946.8 MB in the beginning and 1.0 GB in the end (delta: -74.7 MB). Peak memory consumption was 250.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:14,712 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:14,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:14,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:14,714 INFO L168 Benchmark]: Boogie Preprocessor took 31.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:14,715 INFO L168 Benchmark]: RCFGBuilder took 637.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:14,716 INFO L168 Benchmark]: TraceAbstraction took 6630.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.2 MB). Peak memory consumption was 228.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:14,716 INFO L168 Benchmark]: Witness Printer took 73.45 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:14,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 722.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 637.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6630.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.2 MB). Peak memory consumption was 228.5 MB. Max. memory is 11.5 GB. * Witness Printer took 73.45 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 672 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2768 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 206 SDtfs, 144 SDslu, 245 SDs, 0 SdLazy, 128 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...