./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_rmo.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f231f153df82289eaf5929903c55455de5feb3d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:47:35,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:47:35,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:47:35,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:47:35,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:47:35,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:47:35,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:47:35,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:47:35,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:47:35,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:47:35,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:47:35,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:47:35,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:47:35,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:47:35,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:47:35,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:47:35,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:47:35,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:47:35,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:47:35,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:47:35,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:47:35,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:47:35,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:47:35,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:47:35,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:47:35,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:47:35,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:47:35,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:47:35,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:47:35,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:47:35,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:47:35,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:47:35,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:47:35,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:47:35,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:47:35,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:47:35,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:47:35,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:47:35,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:47:35,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:47:35,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:47:35,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:47:35,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:47:35,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:47:35,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:47:35,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:47:35,485 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:47:35,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:47:35,485 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:47:35,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:47:35,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:47:35,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:47:35,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:47:35,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:47:35,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:47:35,487 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:47:35,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:47:35,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:47:35,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:47:35,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:47:35,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:47:35,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:47:35,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:47:35,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:47:35,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:47:35,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:47:35,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:47:35,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:47:35,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:47:35,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:47:35,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:47:35,492 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 -> 6f231f153df82289eaf5929903c55455de5feb3d [2020-07-28 21:47:35,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:47:35,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:47:35,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:47:35,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:47:35,793 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:47:35,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_rmo.opt.i [2020-07-28 21:47:35,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b672e0c/974e27d4c13c4aef8e0696a9dfe6f60d/FLAGcf987e5d7 [2020-07-28 21:47:36,309 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:47:36,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_rmo.opt.i [2020-07-28 21:47:36,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b672e0c/974e27d4c13c4aef8e0696a9dfe6f60d/FLAGcf987e5d7 [2020-07-28 21:47:36,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b672e0c/974e27d4c13c4aef8e0696a9dfe6f60d [2020-07-28 21:47:36,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:47:36,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:47:36,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:36,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:47:36,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:47:36,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:36" (1/1) ... [2020-07-28 21:47:36,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:36, skipping insertion in model container [2020-07-28 21:47:36,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:36" (1/1) ... [2020-07-28 21:47:36,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:47:36,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:47:37,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:37,170 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:47:37,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:37,379 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:47:37,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37 WrapperNode [2020-07-28 21:47:37,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:37,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:37,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:47:37,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:47:37,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:37,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:47:37,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:47:37,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:47:37,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:47:37,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:47:37,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:47:37,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:47:37,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (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 21:47:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:47:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:47:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:47:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:47:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:47:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:47:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:47:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:47:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:47:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:47:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:47:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:47:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:47:37,547 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 21:47:38,002 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:47:38,002 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:47:38,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38 BoogieIcfgContainer [2020-07-28 21:47:38,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:47:38,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:47:38,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:47:38,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:47:38,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:47:36" (1/3) ... [2020-07-28 21:47:38,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf3f9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:38, skipping insertion in model container [2020-07-28 21:47:38,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (2/3) ... [2020-07-28 21:47:38,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf3f9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:38, skipping insertion in model container [2020-07-28 21:47:38,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38" (3/3) ... [2020-07-28 21:47:38,015 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2020-07-28 21:47:38,025 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:47:38,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:47:38,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:47:38,035 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:47:38,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,067 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,068 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,068 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,070 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,070 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,086 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,108 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:47:38,127 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:47:38,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:47:38,128 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:47:38,128 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:47:38,128 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:47:38,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:47:38,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:47:38,129 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:47:38,142 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,144 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,186 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:38,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:38,192 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 49 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 21:47:38,195 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,219 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:38,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:38,220 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 49 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 21:47:38,223 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:47:38,224 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:47:40,523 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-07-28 21:47:40,523 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:47:40,527 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-07-28 21:47:40,552 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:47:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:47:40,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:47:40,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:40,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:40,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-07-28 21:47:40,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:40,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193510004] [2020-07-28 21:47:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:40,812 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,813 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [165] L774-->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#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,814 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,815 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [167] L776-->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#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,816 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [169] L778-->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#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,817 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:40,819 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, 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 21:47:40,821 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 21:47:40,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193510004] [2020-07-28 21:47:40,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:40,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:47:40,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181880210] [2020-07-28 21:47:40,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:40,831 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:40,835 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:40,859 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 21:47:40,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:40,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:40,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:40,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:40,873 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:47:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:40,999 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-07-28 21:47:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:40,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:41,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:41,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,004 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:41,060 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 21:47:41,094 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:41,094 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:47:41,095 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 21:47:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:47:41,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:47:41,192 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:41,192 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,193 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,196 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,218 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,221 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,221 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,222 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,240 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,243 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:41,243 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:41,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:47:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:47:41,262 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-07-28 21:47:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:41,263 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:47:41,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:47:41,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:41,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:41,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:47:41,265 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:41,265 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-07-28 21:47:41,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:41,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140634064] [2020-07-28 21:47:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:41,371 INFO L280 TraceCheckUtils]: 0: Hoare triple {1756#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {1756#true} is VALID [2020-07-28 21:47:41,371 INFO L280 TraceCheckUtils]: 1: Hoare triple {1756#true} [165] L774-->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] {1756#true} is VALID [2020-07-28 21:47:41,372 INFO L280 TraceCheckUtils]: 2: Hoare triple {1756#true} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {1756#true} is VALID [2020-07-28 21:47:41,372 INFO L280 TraceCheckUtils]: 3: Hoare triple {1756#true} [167] L776-->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] {1756#true} is VALID [2020-07-28 21:47:41,373 INFO L280 TraceCheckUtils]: 4: Hoare triple {1756#true} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1756#true} is VALID [2020-07-28 21:47:41,373 INFO L280 TraceCheckUtils]: 5: Hoare triple {1756#true} [169] L778-->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] {1756#true} is VALID [2020-07-28 21:47:41,374 INFO L280 TraceCheckUtils]: 6: Hoare triple {1756#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,375 INFO L280 TraceCheckUtils]: 7: Hoare triple {1758#(= 1 ~y~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,376 INFO L280 TraceCheckUtils]: 8: Hoare triple {1758#(= 1 ~y~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,379 INFO L280 TraceCheckUtils]: 9: Hoare triple {1758#(= 1 ~y~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1757#false} is VALID [2020-07-28 21:47:41,380 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 21:47:41,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140634064] [2020-07-28 21:47:41,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:41,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:41,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839994808] [2020-07-28 21:47:41,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:41,384 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:41,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:41,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:41,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:41,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:41,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:41,404 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:47:41,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,470 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-07-28 21:47:41,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:41,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:41,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,473 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:41,507 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 21:47:41,512 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:41,512 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 21:47:41,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 21:47:41,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-28 21:47:41,563 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:41,563 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:41,563 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:41,564 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,576 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:41,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,577 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:41,578 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,590 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:41,590 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:41,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,591 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,591 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:41,591 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 21:47:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-07-28 21:47:41,603 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-07-28 21:47:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:41,603 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-07-28 21:47:41,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:47:41,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:41,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:41,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:47:41,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:41,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-07-28 21:47:41,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:41,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501116495] [2020-07-28 21:47:41,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:41,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {2587#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,704 INFO L280 TraceCheckUtils]: 1: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [165] L774-->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] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,705 INFO L280 TraceCheckUtils]: 2: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,706 INFO L280 TraceCheckUtils]: 3: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [167] L776-->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] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,707 INFO L280 TraceCheckUtils]: 4: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,707 INFO L280 TraceCheckUtils]: 5: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [169] L778-->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] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,708 INFO L280 TraceCheckUtils]: 6: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,709 INFO L280 TraceCheckUtils]: 7: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,710 INFO L280 TraceCheckUtils]: 8: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2589#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:41,711 INFO L280 TraceCheckUtils]: 9: Hoare triple {2589#(<= ~__unbuffered_cnt~0 0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:41,713 INFO L280 TraceCheckUtils]: 10: Hoare triple {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, 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] {2588#false} is VALID [2020-07-28 21:47:41,713 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 21:47:41,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501116495] [2020-07-28 21:47:41,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:41,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:41,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298835860] [2020-07-28 21:47:41,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:41,715 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:41,715 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:41,730 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 21:47:41,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:41,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:41,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:41,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:41,732 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-07-28 21:47:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,847 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-07-28 21:47:41,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:47:41,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:41,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:41,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 49 transitions. [2020-07-28 21:47:41,905 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 21:47:41,907 INFO L225 Difference]: With dead ends: 165 [2020-07-28 21:47:41,908 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 21:47:41,908 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 21:47:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 21:47:41,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,947 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,947 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,947 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,947 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,948 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,948 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,948 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,949 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-28 21:47:41,949 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:41,949 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:41,950 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:41,950 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,957 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:41,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,958 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,958 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:41,959 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:41,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,964 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:41,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,965 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,965 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:41,965 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-28 21:47:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-07-28 21:47:41,971 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-07-28 21:47:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:41,971 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-07-28 21:47:41,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:47:41,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:41,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:41,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:47:41,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-07-28 21:47:41,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:41,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802073249] [2020-07-28 21:47:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:42,120 INFO L280 TraceCheckUtils]: 0: Hoare triple {3212#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,121 INFO L280 TraceCheckUtils]: 1: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [165] L774-->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] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,121 INFO L280 TraceCheckUtils]: 2: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,122 INFO L280 TraceCheckUtils]: 3: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [167] L776-->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] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,123 INFO L280 TraceCheckUtils]: 4: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,124 INFO L280 TraceCheckUtils]: 5: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [169] L778-->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] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,124 INFO L280 TraceCheckUtils]: 6: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,125 INFO L280 TraceCheckUtils]: 7: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3214#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,126 INFO L280 TraceCheckUtils]: 8: Hoare triple {3214#(<= ~__unbuffered_cnt~0 0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,127 INFO L280 TraceCheckUtils]: 9: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,128 INFO L280 TraceCheckUtils]: 10: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:42,129 INFO L280 TraceCheckUtils]: 11: Hoare triple {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3213#false} is VALID [2020-07-28 21:47:42,130 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 21:47:42,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802073249] [2020-07-28 21:47:42,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:42,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:42,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295288140] [2020-07-28 21:47:42,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:42,135 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:42,135 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:47:42,151 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 21:47:42,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:47:42,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:42,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:47:42,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:42,152 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-07-28 21:47:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,330 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-07-28 21:47:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:47:42,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:42,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:42,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2020-07-28 21:47:42,402 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,404 INFO L225 Difference]: With dead ends: 111 [2020-07-28 21:47:42,404 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 21:47:42,405 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 21:47:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 21:47:42,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-28 21:47:42,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:42,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:42,435 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:42,435 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,439 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:42,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,440 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,440 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:42,440 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:42,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,444 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:42,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,445 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:42,446 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 21:47:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-07-28 21:47:42,449 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-07-28 21:47:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:42,450 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-07-28 21:47:42,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:47:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:42,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:47:42,451 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:42,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:42,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:47:42,451 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:42,452 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-07-28 21:47:42,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:42,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502071588] [2020-07-28 21:47:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:42,533 INFO L280 TraceCheckUtils]: 0: Hoare triple {3652#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,534 INFO L280 TraceCheckUtils]: 1: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [165] L774-->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] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,535 INFO L280 TraceCheckUtils]: 2: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,536 INFO L280 TraceCheckUtils]: 3: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [167] L776-->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] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,537 INFO L280 TraceCheckUtils]: 4: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,537 INFO L280 TraceCheckUtils]: 5: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [169] L778-->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] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,538 INFO L280 TraceCheckUtils]: 6: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,539 INFO L280 TraceCheckUtils]: 7: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3654#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:47:42,540 INFO L280 TraceCheckUtils]: 8: Hoare triple {3654#(<= ~__unbuffered_cnt~0 0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,541 INFO L280 TraceCheckUtils]: 9: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,542 INFO L280 TraceCheckUtils]: 10: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,543 INFO L280 TraceCheckUtils]: 11: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3656#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:47:42,544 INFO L280 TraceCheckUtils]: 12: Hoare triple {3656#(<= ~__unbuffered_cnt~0 2)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:42,546 INFO L280 TraceCheckUtils]: 13: Hoare triple {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, 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] {3653#false} is VALID [2020-07-28 21:47:42,547 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 21:47:42,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502071588] [2020-07-28 21:47:42,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:42,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:47:42,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171452607] [2020-07-28 21:47:42,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:42,549 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:42,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:47:42,567 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 21:47:42,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:47:42,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:42,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:47:42,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:47:42,568 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-07-28 21:47:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,769 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-07-28 21:47:42,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:47:42,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:42,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:42,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2020-07-28 21:47:42,824 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,826 INFO L225 Difference]: With dead ends: 75 [2020-07-28 21:47:42,826 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 21:47:42,826 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 21:47:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 21:47:42,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-28 21:47:42,841 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:42,841 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:42,842 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:42,842 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,844 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:42,844 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:42,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,845 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,845 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:42,845 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,848 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:42,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,848 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,848 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:42,849 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-28 21:47:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-07-28 21:47:42,851 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-07-28 21:47:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:42,851 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-07-28 21:47:42,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:47:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:42,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:42,852 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 21:47:42,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:47:42,853 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:42,853 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-07-28 21:47:42,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:42,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515520607] [2020-07-28 21:47:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:42,896 INFO L280 TraceCheckUtils]: 0: Hoare triple {4001#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {4001#true} is VALID [2020-07-28 21:47:42,897 INFO L280 TraceCheckUtils]: 1: Hoare triple {4001#true} [165] L774-->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] {4001#true} is VALID [2020-07-28 21:47:42,897 INFO L280 TraceCheckUtils]: 2: Hoare triple {4001#true} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {4001#true} is VALID [2020-07-28 21:47:42,897 INFO L280 TraceCheckUtils]: 3: Hoare triple {4001#true} [167] L776-->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] {4001#true} is VALID [2020-07-28 21:47:42,898 INFO L280 TraceCheckUtils]: 4: Hoare triple {4001#true} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4001#true} is VALID [2020-07-28 21:47:42,898 INFO L280 TraceCheckUtils]: 5: Hoare triple {4001#true} [169] L778-->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] {4001#true} is VALID [2020-07-28 21:47:42,898 INFO L280 TraceCheckUtils]: 6: Hoare triple {4001#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4001#true} is VALID [2020-07-28 21:47:42,899 INFO L280 TraceCheckUtils]: 7: Hoare triple {4001#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4001#true} is VALID [2020-07-28 21:47:42,899 INFO L280 TraceCheckUtils]: 8: Hoare triple {4001#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4001#true} is VALID [2020-07-28 21:47:42,900 INFO L280 TraceCheckUtils]: 9: Hoare triple {4001#true} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:42,900 INFO L280 TraceCheckUtils]: 10: Hoare triple {4003#(= 2 ~y~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:42,901 INFO L280 TraceCheckUtils]: 11: Hoare triple {4003#(= 2 ~y~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:42,902 INFO L280 TraceCheckUtils]: 12: Hoare triple {4003#(= 2 ~y~0)} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:42,902 INFO L280 TraceCheckUtils]: 13: Hoare triple {4003#(= 2 ~y~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:42,903 INFO L280 TraceCheckUtils]: 14: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:42,904 INFO L280 TraceCheckUtils]: 15: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:42,905 INFO L280 TraceCheckUtils]: 16: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4002#false} is VALID [2020-07-28 21:47:42,905 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 21:47:42,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515520607] [2020-07-28 21:47:42,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:42,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:42,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142643184] [2020-07-28 21:47:42,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:42,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:42,907 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:42,927 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 21:47:42,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:42,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:42,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:42,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:42,928 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-07-28 21:47:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,998 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-07-28 21:47:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:42,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:43,000 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 29 transitions. [2020-07-28 21:47:43,032 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,032 INFO L225 Difference]: With dead ends: 85 [2020-07-28 21:47:43,033 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 21:47:43,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:47:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 21:47:43,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-07-28 21:47:43,047 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,047 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,048 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,048 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,050 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,051 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,051 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,051 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,053 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,054 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,054 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,054 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-28 21:47:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-07-28 21:47:43,056 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-07-28 21:47:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,057 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-07-28 21:47:43,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:43,058 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:43,058 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 21:47:43,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:47:43,058 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:43,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-07-28 21:47:43,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:43,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531734587] [2020-07-28 21:47:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:43,097 INFO L280 TraceCheckUtils]: 0: Hoare triple {4287#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2616~0.base_21|) |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0)) |v_#memory_int_23|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21| 1)) (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2616~0.base_21|)) (= |v_ULTIMATE.start_main_~#t2616~0.offset_17| 0) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2616~0.base_21|) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= 0 v_~__unbuffered_p2_EAX~0_39) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2616~0.base_21| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t2616~0.offset=|v_ULTIMATE.start_main_~#t2616~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_14|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2616~0.base=|v_ULTIMATE.start_main_~#t2616~0.base_21|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2616~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2618~0.offset, ULTIMATE.start_main_~#t2617~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2617~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2616~0.base, ~y~0, ~x~0] {4287#true} is VALID [2020-07-28 21:47:43,097 INFO L280 TraceCheckUtils]: 1: Hoare triple {4287#true} [165] L774-->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] {4287#true} is VALID [2020-07-28 21:47:43,098 INFO L280 TraceCheckUtils]: 2: Hoare triple {4287#true} [205] L774-1-->L776: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2617~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2617~0.offset_9|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2617~0.base_10| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2617~0.base_10|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2617~0.base_10|) |v_ULTIMATE.start_main_~#t2617~0.offset_9| 1)) |v_#memory_int_13|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2617~0.base_10| 4) |v_#length_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2617~0.offset=|v_ULTIMATE.start_main_~#t2617~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2617~0.base=|v_ULTIMATE.start_main_~#t2617~0.base_10|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2617~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2617~0.base, #length] {4287#true} is VALID [2020-07-28 21:47:43,098 INFO L280 TraceCheckUtils]: 3: Hoare triple {4287#true} [167] L776-->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] {4287#true} is VALID [2020-07-28 21:47:43,099 INFO L280 TraceCheckUtils]: 4: Hoare triple {4287#true} [211] L776-1-->L778: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t2618~0.offset_11|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2618~0.base_13|) |v_ULTIMATE.start_main_~#t2618~0.offset_11| 2)) |v_#memory_int_17|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2618~0.base_13| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2618~0.base_13|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2618~0.base_13| 1)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2618~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2618~0.base=|v_ULTIMATE.start_main_~#t2618~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2618~0.offset=|v_ULTIMATE.start_main_~#t2618~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2618~0.base, ULTIMATE.start_main_~#t2618~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4287#true} is VALID [2020-07-28 21:47:43,099 INFO L280 TraceCheckUtils]: 5: Hoare triple {4287#true} [169] L778-->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] {4287#true} is VALID [2020-07-28 21:47:43,099 INFO L280 TraceCheckUtils]: 6: Hoare triple {4287#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4287#true} is VALID [2020-07-28 21:47:43,100 INFO L280 TraceCheckUtils]: 7: Hoare triple {4287#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4287#true} is VALID [2020-07-28 21:47:43,100 INFO L280 TraceCheckUtils]: 8: Hoare triple {4287#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4287#true} is VALID [2020-07-28 21:47:43,101 INFO L280 TraceCheckUtils]: 9: Hoare triple {4287#true} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,102 INFO L280 TraceCheckUtils]: 10: Hoare triple {4289#(= 1 ~x~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,102 INFO L280 TraceCheckUtils]: 11: Hoare triple {4289#(= 1 ~x~0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,103 INFO L280 TraceCheckUtils]: 12: Hoare triple {4289#(= 1 ~x~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,104 INFO L280 TraceCheckUtils]: 13: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,105 INFO L280 TraceCheckUtils]: 14: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,105 INFO L280 TraceCheckUtils]: 15: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,106 INFO L280 TraceCheckUtils]: 16: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, 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] {4288#false} is VALID [2020-07-28 21:47:43,107 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 21:47:43,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531734587] [2020-07-28 21:47:43,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:43,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:43,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642542602] [2020-07-28 21:47:43,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,108 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:43,108 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:43,127 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 21:47:43,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:43,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:43,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:43,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:43,128 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-07-28 21:47:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,177 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2020-07-28 21:47:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:43,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:43,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 25 transitions. [2020-07-28 21:47:43,210 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,210 INFO L225 Difference]: With dead ends: 47 [2020-07-28 21:47:43,210 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:47:43,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:47:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:47:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:47:43,211 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,212 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,212 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,212 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,212 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,213 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,213 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,213 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:47:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:47:43,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:47:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,216 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:47:43,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:47:43,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:47:43 BasicIcfg [2020-07-28 21:47:43,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:47:43,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:47:43,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:47:43,223 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:47:43,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38" (3/4) ... [2020-07-28 21:47:43,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:47:43,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:47:43,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:47:43,235 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:47:43,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:47:43,240 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:47:43,241 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:47:43,288 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:47:43,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:47:43,292 INFO L168 Benchmark]: Toolchain (without parser) took 6595.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.0 MB). Free memory was 957.5 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,292 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:47:43,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.11 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 21:47:43,294 INFO L168 Benchmark]: Boogie Preprocessor took 29.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,295 INFO L168 Benchmark]: RCFGBuilder took 534.43 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,295 INFO L168 Benchmark]: TraceAbstraction took 5214.15 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,296 INFO L168 Benchmark]: Witness Printer took 66.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,299 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 0.76 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 681.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.11 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 29.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.43 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5214.15 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * Witness Printer took 66.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 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: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 140 SDtfs, 119 SDslu, 172 SDs, 0 SdLazy, 105 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...