./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe014_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe014_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4041d3b25860179e8efb2919c248dfec5531cce .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:34:50,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:34:50,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:34:50,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:34:50,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:34:50,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:34:50,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:34:50,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:34:50,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:34:50,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:34:50,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:34:50,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:34:50,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:34:50,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:34:50,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:34:50,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:34:50,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:34:50,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:34:50,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:34:50,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:34:50,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:34:50,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:34:50,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:34:50,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:34:50,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:34:50,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:34:50,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:34:50,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:34:50,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:34:50,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:34:50,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:34:50,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:34:50,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:34:50,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:34:50,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:34:50,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:34:50,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:34:50,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:34:50,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:34:50,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:34:50,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:34:50,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:34:50,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:34:50,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:34:50,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:34:50,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:34:50,302 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:34:50,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:34:50,304 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:34:50,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:34:50,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:34:50,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:34:50,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:34:50,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:34:50,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:34:50,306 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:34:50,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:34:50,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:34:50,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:34:50,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:34:50,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:34:50,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:34:50,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:34:50,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:34:50,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:34:50,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:34:50,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:34:50,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:34:50,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:34:50,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:34:50,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:34:50,315 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 -> a4041d3b25860179e8efb2919c248dfec5531cce [2020-07-28 21:34:50,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:34:50,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:34:50,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:34:50,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:34:50,638 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:34:50,638 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_tso.oepc.i [2020-07-28 21:34:50,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c205aec14/7ab1a7e0a2804e76905d28e5659b50ed/FLAGcdc925566 [2020-07-28 21:34:51,232 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:34:51,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_tso.oepc.i [2020-07-28 21:34:51,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c205aec14/7ab1a7e0a2804e76905d28e5659b50ed/FLAGcdc925566 [2020-07-28 21:34:51,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c205aec14/7ab1a7e0a2804e76905d28e5659b50ed [2020-07-28 21:34:51,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:34:51,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:34:51,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:34:51,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:34:51,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:34:51,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:34:51" (1/1) ... [2020-07-28 21:34:51,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd89e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:51, skipping insertion in model container [2020-07-28 21:34:51,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:34:51" (1/1) ... [2020-07-28 21:34:51,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:34:51,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:34:52,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:34:52,126 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:34:52,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:34:52,256 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:34:52,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52 WrapperNode [2020-07-28 21:34:52,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:34:52,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:34:52,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:34:52,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:34:52,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:34:52,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:34:52,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:34:52,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:34:52,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (1/1) ... [2020-07-28 21:34:52,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:34:52,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:34:52,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:34:52,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:34:52,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (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 21:34:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:34:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:34:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:34:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:34:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:34:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:34:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:34:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:34:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:34:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:34:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:34:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:34:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:34:52,425 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 21:34:52,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:34:52,908 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:34:52,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:34:52 BoogieIcfgContainer [2020-07-28 21:34:52,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:34:52,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:34:52,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:34:52,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:34:52,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:34:51" (1/3) ... [2020-07-28 21:34:52,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea0af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:34:52, skipping insertion in model container [2020-07-28 21:34:52,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:34:52" (2/3) ... [2020-07-28 21:34:52,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea0af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:34:52, skipping insertion in model container [2020-07-28 21:34:52,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:34:52" (3/3) ... [2020-07-28 21:34:52,922 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2020-07-28 21:34:52,933 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:34:52,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:34:52,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:34:52,941 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:34:52,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,974 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,975 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,978 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,980 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,980 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,986 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,986 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:52,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:53,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:53,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:53,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:53,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:34:53,017 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:34:53,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:34:53,035 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:34:53,035 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:34:53,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:34:53,036 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:34:53,036 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:34:53,036 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:34:53,036 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:34:53,053 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:34:53,055 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:34:53,098 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:34:53,099 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:34:53,104 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 46 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 21:34:53,107 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:34:53,129 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:34:53,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:34:53,131 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 46 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 21:34:53,133 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:34:53,134 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:34:55,583 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-07-28 21:34:55,696 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-07-28 21:34:55,696 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-07-28 21:34:55,704 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:34:55,750 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:34:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:34:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:34:55,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:55,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:55,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:55,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:55,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-07-28 21:34:55,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:55,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892444934] [2020-07-28 21:34:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:56,036 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,037 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,038 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,039 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,040 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,041 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,042 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:34:56,043 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(= 0 ~__unbuffered_p0_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:34:56,045 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 21:34:56,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892444934] [2020-07-28 21:34:56,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:56,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:34:56,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574617684] [2020-07-28 21:34:56,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:34:56,056 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:56,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:34:56,085 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 21:34:56,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:34:56,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:56,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:34:56,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:34:56,099 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:34:56,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,254 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:34:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:34:56,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:34:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:34:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-28 21:34:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:34:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-28 21:34:56,266 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 33 transitions. [2020-07-28 21:34:56,321 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 21:34:56,363 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:34:56,363 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:34:56,366 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 21:34:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:34:56,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:34:56,528 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:56,529 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:34:56,530 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:34:56,530 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:34:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,568 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:34:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:34:56,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:56,571 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:56,571 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:34:56,572 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:34:56,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,597 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:34:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:34:56,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:56,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:56,599 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:56,600 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:56,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:34:56,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:34:56,624 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:34:56,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:56,624 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:34:56,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:34:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:34:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:34:56,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:56,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:56,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:34:56,626 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:56,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:56,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-07-28 21:34:56,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:56,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992073924] [2020-07-28 21:34:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:56,715 INFO L280 TraceCheckUtils]: 0: Hoare triple {1836#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1838#(<= ~y~0 0)} is VALID [2020-07-28 21:34:56,716 INFO L280 TraceCheckUtils]: 1: Hoare triple {1838#(<= ~y~0 0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1838#(<= ~y~0 0)} is VALID [2020-07-28 21:34:56,717 INFO L280 TraceCheckUtils]: 2: Hoare triple {1838#(<= ~y~0 0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,717 INFO L280 TraceCheckUtils]: 3: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,718 INFO L280 TraceCheckUtils]: 4: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,719 INFO L280 TraceCheckUtils]: 5: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,719 INFO L280 TraceCheckUtils]: 6: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,720 INFO L280 TraceCheckUtils]: 7: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1839#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:34:56,721 INFO L280 TraceCheckUtils]: 8: Hoare triple {1839#(<= ~__unbuffered_p0_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1837#false} is VALID [2020-07-28 21:34:56,722 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 21:34:56,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992073924] [2020-07-28 21:34:56,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:56,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:34:56,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504777788] [2020-07-28 21:34:56,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:34:56,724 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:56,724 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:56,737 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 21:34:56,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:56,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:56,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:56,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:56,738 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:34:56,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,830 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-07-28 21:34:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:34:56,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:34:56,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:34:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:34:56,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 33 transitions. [2020-07-28 21:34:56,884 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 21:34:56,887 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:34:56,887 INFO L226 Difference]: Without dead ends: 116 [2020-07-28 21:34:56,888 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 21:34:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-07-28 21:34:56,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-07-28 21:34:56,925 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:56,925 INFO L82 GeneralOperation]: Start isEquivalent. First operand 116 states. Second operand 116 states. [2020-07-28 21:34:56,925 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 116 states. [2020-07-28 21:34:56,925 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 116 states. [2020-07-28 21:34:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,932 INFO L93 Difference]: Finished difference Result 116 states and 284 transitions. [2020-07-28 21:34:56,932 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-07-28 21:34:56,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:56,933 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:56,933 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 116 states. [2020-07-28 21:34:56,933 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 116 states. [2020-07-28 21:34:56,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:56,940 INFO L93 Difference]: Finished difference Result 116 states and 284 transitions. [2020-07-28 21:34:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-07-28 21:34:56,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:56,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:56,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:56,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-07-28 21:34:56,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-07-28 21:34:56,947 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-07-28 21:34:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:56,948 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-07-28 21:34:56,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-07-28 21:34:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:34:56,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:56,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:56,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:34:56,950 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:56,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-07-28 21:34:56,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:56,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196759626] [2020-07-28 21:34:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:57,016 INFO L280 TraceCheckUtils]: 0: Hoare triple {2550#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,019 INFO L280 TraceCheckUtils]: 1: Hoare triple {2552#(<= ~x~0 0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,020 INFO L280 TraceCheckUtils]: 2: Hoare triple {2552#(<= ~x~0 0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,021 INFO L280 TraceCheckUtils]: 3: Hoare triple {2552#(<= ~x~0 0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,022 INFO L280 TraceCheckUtils]: 4: Hoare triple {2552#(<= ~x~0 0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,023 INFO L280 TraceCheckUtils]: 5: Hoare triple {2552#(<= ~x~0 0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,023 INFO L280 TraceCheckUtils]: 6: Hoare triple {2552#(<= ~x~0 0)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,024 INFO L280 TraceCheckUtils]: 7: Hoare triple {2552#(<= ~x~0 0)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,025 INFO L280 TraceCheckUtils]: 8: Hoare triple {2552#(<= ~x~0 0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,026 INFO L280 TraceCheckUtils]: 9: Hoare triple {2552#(<= ~x~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2552#(<= ~x~0 0)} is VALID [2020-07-28 21:34:57,028 INFO L280 TraceCheckUtils]: 10: Hoare triple {2552#(<= ~x~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2551#false} is VALID [2020-07-28 21:34:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:34:57,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196759626] [2020-07-28 21:34:57,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:57,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:34:57,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781359000] [2020-07-28 21:34:57,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:34:57,031 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:57,031 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:34:57,046 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 21:34:57,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:34:57,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:57,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:34:57,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:34:57,048 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 3 states. [2020-07-28 21:34:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,088 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:34:57,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:34:57,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:34:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:34:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:34:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:34:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:34:57,091 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:34:57,128 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 21:34:57,131 INFO L225 Difference]: With dead ends: 110 [2020-07-28 21:34:57,131 INFO L226 Difference]: Without dead ends: 110 [2020-07-28 21:34:57,131 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 21:34:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-28 21:34:57,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-28 21:34:57,165 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:57,165 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states. Second operand 110 states. [2020-07-28 21:34:57,166 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:34:57,166 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:34:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,172 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:34:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:34:57,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,173 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,173 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:34:57,173 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:34:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,179 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:34:57,179 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:34:57,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,180 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:57,180 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-28 21:34:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 265 transitions. [2020-07-28 21:34:57,186 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 265 transitions. Word has length 11 [2020-07-28 21:34:57,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:57,186 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 265 transitions. [2020-07-28 21:34:57,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:34:57,187 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:34:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:34:57,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:57,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:57,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:34:57,188 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:57,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:57,188 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-07-28 21:34:57,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:57,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511184112] [2020-07-28 21:34:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:57,247 INFO L280 TraceCheckUtils]: 0: Hoare triple {3105#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3105#true} is VALID [2020-07-28 21:34:57,247 INFO L280 TraceCheckUtils]: 1: Hoare triple {3105#true} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3105#true} is VALID [2020-07-28 21:34:57,247 INFO L280 TraceCheckUtils]: 2: Hoare triple {3105#true} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3105#true} is VALID [2020-07-28 21:34:57,248 INFO L280 TraceCheckUtils]: 3: Hoare triple {3105#true} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3105#true} is VALID [2020-07-28 21:34:57,249 INFO L280 TraceCheckUtils]: 4: Hoare triple {3105#true} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3107#(= 1 ~x~0)} is VALID [2020-07-28 21:34:57,250 INFO L280 TraceCheckUtils]: 5: Hoare triple {3107#(= 1 ~x~0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {3107#(= 1 ~x~0)} is VALID [2020-07-28 21:34:57,250 INFO L280 TraceCheckUtils]: 6: Hoare triple {3107#(= 1 ~x~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3107#(= 1 ~x~0)} is VALID [2020-07-28 21:34:57,251 INFO L280 TraceCheckUtils]: 7: Hoare triple {3107#(= 1 ~x~0)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3108#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:34:57,252 INFO L280 TraceCheckUtils]: 8: Hoare triple {3108#(= 1 ~__unbuffered_p2_EAX~0)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3108#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:34:57,253 INFO L280 TraceCheckUtils]: 9: Hoare triple {3108#(= 1 ~__unbuffered_p2_EAX~0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3108#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:34:57,254 INFO L280 TraceCheckUtils]: 10: Hoare triple {3108#(= 1 ~__unbuffered_p2_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3108#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:34:57,255 INFO L280 TraceCheckUtils]: 11: Hoare triple {3108#(= 1 ~__unbuffered_p2_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3106#false} is VALID [2020-07-28 21:34:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:34:57,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511184112] [2020-07-28 21:34:57,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:57,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:34:57,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171674248] [2020-07-28 21:34:57,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:34:57,258 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:57,258 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:57,272 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 21:34:57,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:57,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:57,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:57,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:57,273 INFO L87 Difference]: Start difference. First operand 110 states and 265 transitions. Second operand 4 states. [2020-07-28 21:34:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,378 INFO L93 Difference]: Finished difference Result 158 states and 375 transitions. [2020-07-28 21:34:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:34:57,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:34:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:34:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:34:57,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:34:57,432 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:57,434 INFO L225 Difference]: With dead ends: 158 [2020-07-28 21:34:57,434 INFO L226 Difference]: Without dead ends: 104 [2020-07-28 21:34:57,434 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 21:34:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-28 21:34:57,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-28 21:34:57,460 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:57,460 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-28 21:34:57,460 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-28 21:34:57,460 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-28 21:34:57,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,465 INFO L93 Difference]: Finished difference Result 104 states and 244 transitions. [2020-07-28 21:34:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-07-28 21:34:57,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,466 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-28 21:34:57,467 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-28 21:34:57,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,472 INFO L93 Difference]: Finished difference Result 104 states and 244 transitions. [2020-07-28 21:34:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-07-28 21:34:57,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,473 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,473 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:57,473 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-28 21:34:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 244 transitions. [2020-07-28 21:34:57,478 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 244 transitions. Word has length 12 [2020-07-28 21:34:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:57,478 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 244 transitions. [2020-07-28 21:34:57,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-07-28 21:34:57,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:34:57,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:57,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:57,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:34:57,480 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:57,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-07-28 21:34:57,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:57,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49335125] [2020-07-28 21:34:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:57,571 INFO L280 TraceCheckUtils]: 0: Hoare triple {3687#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,572 INFO L280 TraceCheckUtils]: 1: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,573 INFO L280 TraceCheckUtils]: 2: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,573 INFO L280 TraceCheckUtils]: 3: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,575 INFO L280 TraceCheckUtils]: 4: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,575 INFO L280 TraceCheckUtils]: 5: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,576 INFO L280 TraceCheckUtils]: 6: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,577 INFO L280 TraceCheckUtils]: 7: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,578 INFO L280 TraceCheckUtils]: 8: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,578 INFO L280 TraceCheckUtils]: 9: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,579 INFO L280 TraceCheckUtils]: 10: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3689#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:57,581 INFO L280 TraceCheckUtils]: 11: Hoare triple {3689#(= 0 ~__unbuffered_cnt~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3690#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:34:57,582 INFO L280 TraceCheckUtils]: 12: Hoare triple {3690#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3688#false} is VALID [2020-07-28 21:34:57,583 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 21:34:57,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49335125] [2020-07-28 21:34:57,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:57,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:34:57,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609816904] [2020-07-28 21:34:57,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:34:57,585 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:57,585 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:57,604 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:57,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:57,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:57,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:57,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:57,606 INFO L87 Difference]: Start difference. First operand 104 states and 244 transitions. Second operand 4 states. [2020-07-28 21:34:57,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,730 INFO L93 Difference]: Finished difference Result 127 states and 275 transitions. [2020-07-28 21:34:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:34:57,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:34:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:34:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:34:57,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 49 transitions. [2020-07-28 21:34:57,825 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:57,827 INFO L225 Difference]: With dead ends: 127 [2020-07-28 21:34:57,827 INFO L226 Difference]: Without dead ends: 87 [2020-07-28 21:34:57,828 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 21:34:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-07-28 21:34:57,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-07-28 21:34:57,851 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:57,851 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 87 states. [2020-07-28 21:34:57,851 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 87 states. [2020-07-28 21:34:57,852 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 87 states. [2020-07-28 21:34:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,855 INFO L93 Difference]: Finished difference Result 87 states and 183 transitions. [2020-07-28 21:34:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-07-28 21:34:57,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,856 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,856 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 87 states. [2020-07-28 21:34:57,856 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 87 states. [2020-07-28 21:34:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:57,859 INFO L93 Difference]: Finished difference Result 87 states and 183 transitions. [2020-07-28 21:34:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-07-28 21:34:57,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:57,860 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:57,860 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:57,860 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-28 21:34:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 183 transitions. [2020-07-28 21:34:57,863 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 183 transitions. Word has length 13 [2020-07-28 21:34:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:57,864 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 183 transitions. [2020-07-28 21:34:57,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-07-28 21:34:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:34:57,865 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:57,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:57,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:34:57,865 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-07-28 21:34:57,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:57,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992517287] [2020-07-28 21:34:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:58,016 INFO L280 TraceCheckUtils]: 0: Hoare triple {4170#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,017 INFO L280 TraceCheckUtils]: 1: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,018 INFO L280 TraceCheckUtils]: 2: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,018 INFO L280 TraceCheckUtils]: 3: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,019 INFO L280 TraceCheckUtils]: 4: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,020 INFO L280 TraceCheckUtils]: 5: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,021 INFO L280 TraceCheckUtils]: 6: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,022 INFO L280 TraceCheckUtils]: 7: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,022 INFO L280 TraceCheckUtils]: 8: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4173#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,023 INFO L280 TraceCheckUtils]: 9: Hoare triple {4173#(<= ~__unbuffered_cnt~0 1)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4173#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,024 INFO L280 TraceCheckUtils]: 10: Hoare triple {4173#(<= ~__unbuffered_cnt~0 1)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4173#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,025 INFO L280 TraceCheckUtils]: 11: Hoare triple {4173#(<= ~__unbuffered_cnt~0 1)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4173#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,026 INFO L280 TraceCheckUtils]: 12: Hoare triple {4173#(<= ~__unbuffered_cnt~0 1)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4174#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:34:58,028 INFO L280 TraceCheckUtils]: 13: Hoare triple {4174#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4171#false} is VALID [2020-07-28 21:34:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:34:58,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992517287] [2020-07-28 21:34:58,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:58,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:34:58,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77403941] [2020-07-28 21:34:58,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:34:58,030 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:58,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:34:58,048 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 21:34:58,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:34:58,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:58,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:34:58,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:34:58,049 INFO L87 Difference]: Start difference. First operand 87 states and 183 transitions. Second operand 5 states. [2020-07-28 21:34:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,191 INFO L93 Difference]: Finished difference Result 90 states and 175 transitions. [2020-07-28 21:34:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:34:58,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:34:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:34:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2020-07-28 21:34:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:34:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2020-07-28 21:34:58,193 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 54 transitions. [2020-07-28 21:34:58,260 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:58,261 INFO L225 Difference]: With dead ends: 90 [2020-07-28 21:34:58,261 INFO L226 Difference]: Without dead ends: 65 [2020-07-28 21:34:58,262 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 21:34:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-07-28 21:34:58,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-07-28 21:34:58,276 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:58,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 65 states. [2020-07-28 21:34:58,276 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 65 states. [2020-07-28 21:34:58,277 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 65 states. [2020-07-28 21:34:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,278 INFO L93 Difference]: Finished difference Result 65 states and 119 transitions. [2020-07-28 21:34:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-07-28 21:34:58,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,279 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 65 states. [2020-07-28 21:34:58,279 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 65 states. [2020-07-28 21:34:58,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,281 INFO L93 Difference]: Finished difference Result 65 states and 119 transitions. [2020-07-28 21:34:58,281 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-07-28 21:34:58,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,282 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,282 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:58,282 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:58,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-28 21:34:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 119 transitions. [2020-07-28 21:34:58,284 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 119 transitions. Word has length 14 [2020-07-28 21:34:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:58,284 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 119 transitions. [2020-07-28 21:34:58,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:34:58,284 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-07-28 21:34:58,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:34:58,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:58,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:34:58,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:34:58,285 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:58,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:58,285 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-07-28 21:34:58,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:58,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383292054] [2020-07-28 21:34:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:58,386 INFO L280 TraceCheckUtils]: 0: Hoare triple {4529#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,386 INFO L280 TraceCheckUtils]: 1: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,387 INFO L280 TraceCheckUtils]: 2: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,388 INFO L280 TraceCheckUtils]: 3: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,389 INFO L280 TraceCheckUtils]: 4: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,390 INFO L280 TraceCheckUtils]: 5: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,390 INFO L280 TraceCheckUtils]: 6: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,391 INFO L280 TraceCheckUtils]: 7: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4531#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:34:58,392 INFO L280 TraceCheckUtils]: 8: Hoare triple {4531#(= 0 ~__unbuffered_cnt~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4532#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,393 INFO L280 TraceCheckUtils]: 9: Hoare triple {4532#(<= ~__unbuffered_cnt~0 1)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4532#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,397 INFO L280 TraceCheckUtils]: 10: Hoare triple {4532#(<= ~__unbuffered_cnt~0 1)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4532#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,398 INFO L280 TraceCheckUtils]: 11: Hoare triple {4532#(<= ~__unbuffered_cnt~0 1)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4532#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:34:58,400 INFO L280 TraceCheckUtils]: 12: Hoare triple {4532#(<= ~__unbuffered_cnt~0 1)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4533#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:34:58,402 INFO L280 TraceCheckUtils]: 13: Hoare triple {4533#(<= ~__unbuffered_cnt~0 2)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4534#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:34:58,403 INFO L280 TraceCheckUtils]: 14: Hoare triple {4534#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4530#false} is VALID [2020-07-28 21:34:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:34:58,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383292054] [2020-07-28 21:34:58,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:58,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:34:58,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467353415] [2020-07-28 21:34:58,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:34:58,405 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:58,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:34:58,441 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:58,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:34:58,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:58,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:34:58,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:34:58,442 INFO L87 Difference]: Start difference. First operand 65 states and 119 transitions. Second operand 6 states. [2020-07-28 21:34:58,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,607 INFO L93 Difference]: Finished difference Result 62 states and 111 transitions. [2020-07-28 21:34:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:34:58,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:34:58,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:34:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 45 transitions. [2020-07-28 21:34:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:34:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 45 transitions. [2020-07-28 21:34:58,609 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 45 transitions. [2020-07-28 21:34:58,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:34:58,668 INFO L225 Difference]: With dead ends: 62 [2020-07-28 21:34:58,668 INFO L226 Difference]: Without dead ends: 54 [2020-07-28 21:34:58,669 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 21:34:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-28 21:34:58,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-28 21:34:58,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:58,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand 54 states. [2020-07-28 21:34:58,682 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:34:58,682 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:34:58,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,683 INFO L93 Difference]: Finished difference Result 54 states and 97 transitions. [2020-07-28 21:34:58,684 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-07-28 21:34:58,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,684 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,684 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:34:58,684 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:34:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,686 INFO L93 Difference]: Finished difference Result 54 states and 97 transitions. [2020-07-28 21:34:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-07-28 21:34:58,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,686 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:58,686 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-28 21:34:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-07-28 21:34:58,688 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-07-28 21:34:58,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:58,688 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-07-28 21:34:58,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:34:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-07-28 21:34:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:34:58,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:58,689 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 21:34:58,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:34:58,689 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:58,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:58,690 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-07-28 21:34:58,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:58,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57363986] [2020-07-28 21:34:58,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:58,737 INFO L280 TraceCheckUtils]: 0: Hoare triple {4817#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4817#true} is VALID [2020-07-28 21:34:58,737 INFO L280 TraceCheckUtils]: 1: Hoare triple {4817#true} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4817#true} is VALID [2020-07-28 21:34:58,738 INFO L280 TraceCheckUtils]: 2: Hoare triple {4817#true} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4817#true} is VALID [2020-07-28 21:34:58,738 INFO L280 TraceCheckUtils]: 3: Hoare triple {4817#true} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4817#true} is VALID [2020-07-28 21:34:58,738 INFO L280 TraceCheckUtils]: 4: Hoare triple {4817#true} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4817#true} is VALID [2020-07-28 21:34:58,738 INFO L280 TraceCheckUtils]: 5: Hoare triple {4817#true} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {4817#true} is VALID [2020-07-28 21:34:58,739 INFO L280 TraceCheckUtils]: 6: Hoare triple {4817#true} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4817#true} is VALID [2020-07-28 21:34:58,739 INFO L280 TraceCheckUtils]: 7: Hoare triple {4817#true} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,740 INFO L280 TraceCheckUtils]: 8: Hoare triple {4819#(= 2 ~x~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,740 INFO L280 TraceCheckUtils]: 9: Hoare triple {4819#(= 2 ~x~0)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,741 INFO L280 TraceCheckUtils]: 10: Hoare triple {4819#(= 2 ~x~0)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,741 INFO L280 TraceCheckUtils]: 11: Hoare triple {4819#(= 2 ~x~0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,742 INFO L280 TraceCheckUtils]: 12: Hoare triple {4819#(= 2 ~x~0)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4819#(= 2 ~x~0)} is VALID [2020-07-28 21:34:58,743 INFO L280 TraceCheckUtils]: 13: Hoare triple {4819#(= 2 ~x~0)} [148] L715-->L718: Formula: (= v_~__unbuffered_p0_EBX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0] {4820#(= 2 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,743 INFO L280 TraceCheckUtils]: 14: Hoare triple {4820#(= 2 ~__unbuffered_p0_EBX~0)} [199] L718-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4820#(= 2 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,744 INFO L280 TraceCheckUtils]: 15: Hoare triple {4820#(= 2 ~__unbuffered_p0_EBX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4820#(= 2 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,745 INFO L280 TraceCheckUtils]: 16: Hoare triple {4820#(= 2 ~__unbuffered_p0_EBX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4818#false} is VALID [2020-07-28 21:34:58,745 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 21:34:58,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57363986] [2020-07-28 21:34:58,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:58,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:34:58,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585993446] [2020-07-28 21:34:58,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:58,747 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:58,747 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:58,764 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 21:34:58,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:58,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:58,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:58,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:58,765 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-07-28 21:34:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,836 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-07-28 21:34:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:34:58,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:34:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:34:58,837 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:34:58,872 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 21:34:58,873 INFO L225 Difference]: With dead ends: 63 [2020-07-28 21:34:58,873 INFO L226 Difference]: Without dead ends: 35 [2020-07-28 21:34:58,873 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 21:34:58,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-28 21:34:58,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-28 21:34:58,883 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:58,883 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-28 21:34:58,883 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:34:58,884 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:34:58,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,885 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:34:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:34:58,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,886 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:34:58,886 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:34:58,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:58,887 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:34:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:34:58,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:58,888 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:58,888 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:58,888 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-28 21:34:58,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-07-28 21:34:58,889 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-07-28 21:34:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:58,890 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-07-28 21:34:58,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:34:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:34:58,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:58,891 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 21:34:58,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:34:58,891 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:58,891 INFO L82 PathProgramCache]: Analyzing trace with hash 361560856, now seen corresponding path program 2 times [2020-07-28 21:34:58,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:58,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426398387] [2020-07-28 21:34:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:58,944 INFO L280 TraceCheckUtils]: 0: Hoare triple {5028#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5028#true} is VALID [2020-07-28 21:34:58,944 INFO L280 TraceCheckUtils]: 1: Hoare triple {5028#true} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5028#true} is VALID [2020-07-28 21:34:58,944 INFO L280 TraceCheckUtils]: 2: Hoare triple {5028#true} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5028#true} is VALID [2020-07-28 21:34:58,945 INFO L280 TraceCheckUtils]: 3: Hoare triple {5028#true} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {5028#true} is VALID [2020-07-28 21:34:58,945 INFO L280 TraceCheckUtils]: 4: Hoare triple {5028#true} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {5028#true} is VALID [2020-07-28 21:34:58,945 INFO L280 TraceCheckUtils]: 5: Hoare triple {5028#true} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {5028#true} is VALID [2020-07-28 21:34:58,946 INFO L280 TraceCheckUtils]: 6: Hoare triple {5028#true} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5028#true} is VALID [2020-07-28 21:34:58,946 INFO L280 TraceCheckUtils]: 7: Hoare triple {5028#true} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5028#true} is VALID [2020-07-28 21:34:58,946 INFO L280 TraceCheckUtils]: 8: Hoare triple {5028#true} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5028#true} is VALID [2020-07-28 21:34:58,947 INFO L280 TraceCheckUtils]: 9: Hoare triple {5028#true} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5030#(= 1 ~x~0)} is VALID [2020-07-28 21:34:58,948 INFO L280 TraceCheckUtils]: 10: Hoare triple {5030#(= 1 ~x~0)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5030#(= 1 ~x~0)} is VALID [2020-07-28 21:34:58,948 INFO L280 TraceCheckUtils]: 11: Hoare triple {5030#(= 1 ~x~0)} [148] L715-->L718: Formula: (= v_~__unbuffered_p0_EBX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0] {5031#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,949 INFO L280 TraceCheckUtils]: 12: Hoare triple {5031#(= 1 ~__unbuffered_p0_EBX~0)} [199] L718-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5031#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,950 INFO L280 TraceCheckUtils]: 13: Hoare triple {5031#(= 1 ~__unbuffered_p0_EBX~0)} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5031#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,950 INFO L280 TraceCheckUtils]: 14: Hoare triple {5031#(= 1 ~__unbuffered_p0_EBX~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5031#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,951 INFO L280 TraceCheckUtils]: 15: Hoare triple {5031#(= 1 ~__unbuffered_p0_EBX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5031#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:34:58,952 INFO L280 TraceCheckUtils]: 16: Hoare triple {5031#(= 1 ~__unbuffered_p0_EBX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5029#false} is VALID [2020-07-28 21:34:58,952 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 21:34:58,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426398387] [2020-07-28 21:34:58,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:58,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:34:58,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272869498] [2020-07-28 21:34:58,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:58,954 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:58,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:58,973 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 21:34:58,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:58,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:58,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:58,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:58,974 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-07-28 21:34:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,033 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2020-07-28 21:34:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:34:59,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-07-28 21:34:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-07-28 21:34:59,034 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 30 transitions. [2020-07-28 21:34:59,066 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 21:34:59,066 INFO L225 Difference]: With dead ends: 48 [2020-07-28 21:34:59,067 INFO L226 Difference]: Without dead ends: 30 [2020-07-28 21:34:59,067 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 21:34:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-28 21:34:59,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:34:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-28 21:34:59,074 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:59,075 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-28 21:34:59,075 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-28 21:34:59,075 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-28 21:34:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,076 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-07-28 21:34:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:34:59,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:59,076 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:59,076 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-28 21:34:59,076 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-28 21:34:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,077 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-07-28 21:34:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:34:59,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:59,078 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:59,078 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:59,078 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:59,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-28 21:34:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-07-28 21:34:59,079 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-07-28 21:34:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:59,079 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-07-28 21:34:59,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-07-28 21:34:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:34:59,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:34:59,080 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 21:34:59,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:34:59,080 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:34:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:34:59,081 INFO L82 PathProgramCache]: Analyzing trace with hash -550831814, now seen corresponding path program 3 times [2020-07-28 21:34:59,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:34:59,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946883329] [2020-07-28 21:34:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:34:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:34:59,155 INFO L280 TraceCheckUtils]: 0: Hoare triple {5204#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2115~0.base_24|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2115~0.base_24|) |v_ULTIMATE.start_main_~#t2115~0.offset_17| 0)) |v_#memory_int_17|) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t2115~0.base_24| 4)) (= v_~__unbuffered_cnt~0_131 0) (= 0 |v_ULTIMATE.start_main_~#t2115~0.offset_17|) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p0_EAX~0_53) (= 0 |v_#NULL.base_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24|)) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t2115~0.base_24| 1)) (= 0 v_~y~0_30) (= 0 v_~x~0_59) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_16|, ULTIMATE.start_main_~#t2115~0.base=|v_ULTIMATE.start_main_~#t2115~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_19|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t2115~0.offset=|v_ULTIMATE.start_main_~#t2115~0.offset_17|, ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_22|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_53, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_14|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_30, ~x~0=v_~x~0_59} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_~#t2115~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2117~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2115~0.offset, ULTIMATE.start_main_~#t2116~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2117~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {5206#(<= ~x~0 0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {5206#(<= ~x~0 0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= 0 |v_ULTIMATE.start_main_~#t2116~0.offset_8|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2116~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9|)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2116~0.base_9|) |v_ULTIMATE.start_main_~#t2116~0.offset_8| 1))) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2116~0.base_9| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2116~0.base_9| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2116~0.base=|v_ULTIMATE.start_main_~#t2116~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2116~0.offset=|v_ULTIMATE.start_main_~#t2116~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2116~0.base, ULTIMATE.start_main_~#t2116~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,158 INFO L280 TraceCheckUtils]: 3: Hoare triple {5206#(<= ~x~0 0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,170 INFO L280 TraceCheckUtils]: 4: Hoare triple {5206#(<= ~x~0 0)} [196] L770-1-->L772: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2117~0.offset_8|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2117~0.base_8| 4) |v_#length_13|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2117~0.base_8|) |v_ULTIMATE.start_main_~#t2117~0.offset_8| 2))) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2117~0.base_8| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2117~0.base_8|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2117~0.base_8|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t2117~0.offset=|v_ULTIMATE.start_main_~#t2117~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2117~0.base=|v_ULTIMATE.start_main_~#t2117~0.base_8|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2117~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2117~0.base, #length] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,171 INFO L280 TraceCheckUtils]: 5: Hoare triple {5206#(<= ~x~0 0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {5206#(<= ~x~0 0)} is VALID [2020-07-28 21:34:59,172 INFO L280 TraceCheckUtils]: 6: Hoare triple {5206#(<= ~x~0 0)} [194] P2ENTRY-->L745: Formula: (and (= v_~x~0_23 v_~__unbuffered_p2_EAX~0_18) (= 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_23} 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_18, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,173 INFO L280 TraceCheckUtils]: 7: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [160] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,174 INFO L280 TraceCheckUtils]: 8: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [177] P0ENTRY-->L715: Formula: (and (= v_~y~0_7 v_~__unbuffered_p0_EAX~0_12) (= 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|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, 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_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,175 INFO L280 TraceCheckUtils]: 9: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,177 INFO L280 TraceCheckUtils]: 10: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [148] L715-->L718: Formula: (= v_~__unbuffered_p0_EBX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,178 INFO L280 TraceCheckUtils]: 11: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_24) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,181 INFO L280 TraceCheckUtils]: 12: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [199] L718-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,181 INFO L280 TraceCheckUtils]: 13: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [154] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,182 INFO L280 TraceCheckUtils]: 14: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,183 INFO L280 TraceCheckUtils]: 15: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5207#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:34:59,184 INFO L280 TraceCheckUtils]: 16: Hoare triple {5207#(<= ~__unbuffered_p2_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~x~0_58) (= 2 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 1 v_~__unbuffered_p0_EAX~0_52) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_52, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~x~0=v_~x~0_58, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5205#false} is VALID [2020-07-28 21:34:59,184 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 21:34:59,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946883329] [2020-07-28 21:34:59,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:34:59,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:34:59,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994015997] [2020-07-28 21:34:59,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:59,186 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:34:59,186 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:34:59,211 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 21:34:59,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:34:59,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:34:59,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:34:59,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:34:59,212 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-07-28 21:34:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,249 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:34:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:34:59,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:34:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:34:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-28 21:34:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:34:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-07-28 21:34:59,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 19 transitions. [2020-07-28 21:34:59,272 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 21:34:59,272 INFO L225 Difference]: With dead ends: 29 [2020-07-28 21:34:59,272 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:34:59,273 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 21:34:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:34:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:34:59,273 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:34:59,273 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:34:59,273 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:34:59,274 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:34:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,274 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:34:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:34:59,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:59,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:59,274 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:34:59,274 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:34:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:34:59,275 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:34:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:34:59,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:59,275 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:34:59,275 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:34:59,275 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:34:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:34:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:34:59,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:34:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:34:59,276 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:34:59,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:34:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:34:59,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:34:59,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:34:59,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:34:59 BasicIcfg [2020-07-28 21:34:59,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:34:59,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:34:59,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:34:59,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:34:59,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:34:52" (3/4) ... [2020-07-28 21:34:59,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:34:59,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:34:59,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:34:59,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:34:59,297 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:34:59,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:34:59,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:34:59,344 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:34:59,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:34:59,347 INFO L168 Benchmark]: Toolchain (without parser) took 7836.30 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 179.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:34:59,347 INFO L168 Benchmark]: CDTParser took 0.33 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 21:34:59,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:34:59,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.05 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 21:34:59,349 INFO L168 Benchmark]: Boogie Preprocessor took 31.23 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 21:34:59,352 INFO L168 Benchmark]: RCFGBuilder took 566.38 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:34:59,353 INFO L168 Benchmark]: TraceAbstraction took 6366.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -10.7 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:34:59,353 INFO L168 Benchmark]: Witness Printer took 63.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:34:59,359 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 0.33 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 744.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.05 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 31.23 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 566.38 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6366.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -10.7 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.43 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 670 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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: 6.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 190 SDtfs, 157 SDslu, 236 SDs, 0 SdLazy, 131 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 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: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 4389 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...