./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6380bb6e6a74b3adc07c798e2d50ba380d5c10b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:26:44,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:26:44,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:26:44,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:26:44,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:26:44,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:26:44,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:26:44,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:26:44,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:26:44,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:26:44,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:26:44,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:26:44,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:26:44,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:26:44,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:26:44,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:26:44,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:26:44,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:26:44,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:26:44,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:26:44,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:26:44,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:26:44,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:26:44,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:26:44,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:26:44,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:26:44,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:26:44,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:26:44,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:26:44,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:26:44,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:26:44,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:26:44,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:26:44,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:26:44,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:26:44,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:26:44,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:26:44,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:26:44,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:26:44,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:26:44,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:26:44,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:26:44,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:26:44,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:26:44,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:26:44,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:26:44,505 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:26:44,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:26:44,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:26:44,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:26:44,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:26:44,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:26:44,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:26:44,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:26:44,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:26:44,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:26:44,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:26:44,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:26:44,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:26:44,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:26:44,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:26:44,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:26:44,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:26:44,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:26:44,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:26:44,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:26:44,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:26:44,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:26:44,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:26:44,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:26:44,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:26:44,513 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 -> b6380bb6e6a74b3adc07c798e2d50ba380d5c10b [2020-07-28 21:26:44,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:26:44,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:26:44,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:26:44,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:26:44,887 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:26:44,888 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2020-07-28 21:26:44,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ba62468/39affdf237c74a6399ed34781c61ca1f/FLAG50677b68f [2020-07-28 21:26:45,480 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:26:45,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2020-07-28 21:26:45,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ba62468/39affdf237c74a6399ed34781c61ca1f/FLAG50677b68f [2020-07-28 21:26:45,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ba62468/39affdf237c74a6399ed34781c61ca1f [2020-07-28 21:26:45,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:26:45,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:26:45,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:26:45,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:26:45,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:26:45,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:26:45" (1/1) ... [2020-07-28 21:26:45,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f271fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:45, skipping insertion in model container [2020-07-28 21:26:45,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:26:45" (1/1) ... [2020-07-28 21:26:45,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:26:45,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:26:46,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:26:46,299 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:26:46,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:26:46,461 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:26:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46 WrapperNode [2020-07-28 21:26:46,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:26:46,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:26:46,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:26:46,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:26:46,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:26:46,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:26:46,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:26:46,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:26:46,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... [2020-07-28 21:26:46,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:26:46,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:26:46,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:26:46,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:26:46,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:26:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:26:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:26:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:26:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:26:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:26:46,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:26:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:26:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:26:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:26:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:26:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:26:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:26:46,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:26:46,619 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 21:26:47,105 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:26:47,106 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:26:47,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:47 BoogieIcfgContainer [2020-07-28 21:26:47,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:26:47,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:26:47,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:26:47,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:26:47,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:26:45" (1/3) ... [2020-07-28 21:26:47,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a97ae3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:26:47, skipping insertion in model container [2020-07-28 21:26:47,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:46" (2/3) ... [2020-07-28 21:26:47,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a97ae3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:26:47, skipping insertion in model container [2020-07-28 21:26:47,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:47" (3/3) ... [2020-07-28 21:26:47,123 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-07-28 21:26:47,135 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:26:47,135 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:26:47,145 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:26:47,147 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:26:47,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:47,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:26:47,258 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:26:47,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:26:47,259 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:26:47,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:26:47,259 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:26:47,260 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:26:47,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:26:47,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:26:47,276 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:26:47,278 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:26:47,319 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:26:47,320 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:26:47,325 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:26:47,328 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:26:47,350 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:26:47,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:26:47,352 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:26:47,354 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:26:47,356 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:26:49,521 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-07-28 21:26:49,803 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-07-28 21:26:49,803 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-07-28 21:26:49,810 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:26:49,859 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:26:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:26:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:26:49,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:49,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:49,895 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:49,904 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-07-28 21:26:49,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:49,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296100622] [2020-07-28 21:26:49,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:50,154 INFO L280 TraceCheckUtils]: 0: Hoare triple {676#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,155 INFO L280 TraceCheckUtils]: 1: Hoare triple {678#(= 0 ~y~0)} [163] L766-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,156 INFO L280 TraceCheckUtils]: 2: Hoare triple {678#(= 0 ~y~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,157 INFO L280 TraceCheckUtils]: 3: Hoare triple {678#(= 0 ~y~0)} [165] L768-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,158 INFO L280 TraceCheckUtils]: 4: Hoare triple {678#(= 0 ~y~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,159 INFO L280 TraceCheckUtils]: 5: Hoare triple {678#(= 0 ~y~0)} [167] L770-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,160 INFO L280 TraceCheckUtils]: 6: Hoare triple {678#(= 0 ~y~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {678#(= 0 ~y~0)} is VALID [2020-07-28 21:26:50,161 INFO L280 TraceCheckUtils]: 7: Hoare triple {678#(= 0 ~y~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {677#false} is VALID [2020-07-28 21:26:50,163 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 21:26:50,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296100622] [2020-07-28 21:26:50,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:50,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:26:50,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474047994] [2020-07-28 21:26:50,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:26:50,173 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:50,177 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:50,200 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 21:26:50,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:50,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:50,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:50,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:50,214 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:26:50,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,373 INFO L93 Difference]: Finished difference Result 282 states and 804 transitions. [2020-07-28 21:26:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:50,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:26:50,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:26:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:26:50,382 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2020-07-28 21:26:50,433 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:50,462 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:26:50,463 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:26:50,464 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 21:26:50,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:26:50,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:26:50,584 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:50,585 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:50,585 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:50,586 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:50,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,607 INFO L93 Difference]: Finished difference Result 218 states and 596 transitions. [2020-07-28 21:26:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 596 transitions. [2020-07-28 21:26:50,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:50,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:50,611 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:50,611 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,630 INFO L93 Difference]: Finished difference Result 218 states and 596 transitions. [2020-07-28 21:26:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 596 transitions. [2020-07-28 21:26:50,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:50,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:50,633 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:50,633 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:26:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 596 transitions. [2020-07-28 21:26:50,651 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 596 transitions. Word has length 8 [2020-07-28 21:26:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:50,652 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 596 transitions. [2020-07-28 21:26:50,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 596 transitions. [2020-07-28 21:26:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:26:50,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:50,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:50,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:26:50,656 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:50,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:50,657 INFO L82 PathProgramCache]: Analyzing trace with hash -457725721, now seen corresponding path program 1 times [2020-07-28 21:26:50,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:50,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507439181] [2020-07-28 21:26:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:50,745 INFO L280 TraceCheckUtils]: 0: Hoare triple {1835#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1835#true} is VALID [2020-07-28 21:26:50,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {1835#true} [163] L766-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1835#true} is VALID [2020-07-28 21:26:50,746 INFO L280 TraceCheckUtils]: 2: Hoare triple {1835#true} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {1835#true} is VALID [2020-07-28 21:26:50,746 INFO L280 TraceCheckUtils]: 3: Hoare triple {1835#true} [165] L768-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1835#true} is VALID [2020-07-28 21:26:50,747 INFO L280 TraceCheckUtils]: 4: Hoare triple {1835#true} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1835#true} is VALID [2020-07-28 21:26:50,748 INFO L280 TraceCheckUtils]: 5: Hoare triple {1835#true} [152] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {1837#(= 1 ~y~0)} is VALID [2020-07-28 21:26:50,748 INFO L280 TraceCheckUtils]: 6: Hoare triple {1837#(= 1 ~y~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {1837#(= 1 ~y~0)} is VALID [2020-07-28 21:26:50,749 INFO L280 TraceCheckUtils]: 7: Hoare triple {1837#(= 1 ~y~0)} [167] L770-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1837#(= 1 ~y~0)} is VALID [2020-07-28 21:26:50,750 INFO L280 TraceCheckUtils]: 8: Hoare triple {1837#(= 1 ~y~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} 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_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1837#(= 1 ~y~0)} is VALID [2020-07-28 21:26:50,751 INFO L280 TraceCheckUtils]: 9: Hoare triple {1837#(= 1 ~y~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1836#false} is VALID [2020-07-28 21:26:50,751 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 21:26:50,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507439181] [2020-07-28 21:26:50,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:50,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:50,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854932724] [2020-07-28 21:26:50,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:26:50,754 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:50,754 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:50,766 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 21:26:50,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:50,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:50,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:50,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:50,767 INFO L87 Difference]: Start difference. First operand 218 states and 596 transitions. Second operand 3 states. [2020-07-28 21:26:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,840 INFO L93 Difference]: Finished difference Result 250 states and 644 transitions. [2020-07-28 21:26:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:50,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:26:50,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:26:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:50,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:26:50,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 28 transitions. [2020-07-28 21:26:50,884 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:50,893 INFO L225 Difference]: With dead ends: 250 [2020-07-28 21:26:50,894 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:26:50,895 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 21:26:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:26:50,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,947 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2020-07-28 21:26:50,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:50,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 202 states. [2020-07-28 21:26:50,948 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 202 states. [2020-07-28 21:26:50,948 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 202 states. [2020-07-28 21:26:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,962 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions. [2020-07-28 21:26:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 556 transitions. [2020-07-28 21:26:50,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:50,964 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:50,964 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 218 states. [2020-07-28 21:26:50,964 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 218 states. [2020-07-28 21:26:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:50,979 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions. [2020-07-28 21:26:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 556 transitions. [2020-07-28 21:26:50,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:50,980 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:50,980 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:50,980 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:26:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 528 transitions. [2020-07-28 21:26:50,994 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 528 transitions. Word has length 10 [2020-07-28 21:26:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:50,994 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 528 transitions. [2020-07-28 21:26:50,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 528 transitions. [2020-07-28 21:26:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:26:50,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:50,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:50,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:26:50,996 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:50,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:50,996 INFO L82 PathProgramCache]: Analyzing trace with hash 42721384, now seen corresponding path program 1 times [2020-07-28 21:26:50,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:50,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353671890] [2020-07-28 21:26:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:51,052 INFO L280 TraceCheckUtils]: 0: Hoare triple {2930#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,052 INFO L280 TraceCheckUtils]: 1: Hoare triple {2932#(= 0 ~x~0)} [163] L766-->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] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {2932#(= 0 ~x~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,054 INFO L280 TraceCheckUtils]: 3: Hoare triple {2932#(= 0 ~x~0)} [165] L768-->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] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,054 INFO L280 TraceCheckUtils]: 4: Hoare triple {2932#(= 0 ~x~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,055 INFO L280 TraceCheckUtils]: 5: Hoare triple {2932#(= 0 ~x~0)} [167] L770-->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] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,056 INFO L280 TraceCheckUtils]: 6: Hoare triple {2932#(= 0 ~x~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,056 INFO L280 TraceCheckUtils]: 7: Hoare triple {2932#(= 0 ~x~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,057 INFO L280 TraceCheckUtils]: 8: Hoare triple {2932#(= 0 ~x~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {2932#(= 0 ~x~0)} is VALID [2020-07-28 21:26:51,058 INFO L280 TraceCheckUtils]: 9: Hoare triple {2932#(= 0 ~x~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2931#false} is VALID [2020-07-28 21:26:51,059 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 21:26:51,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353671890] [2020-07-28 21:26:51,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:51,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:26:51,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929506524] [2020-07-28 21:26:51,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:26:51,060 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:51,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:51,073 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 21:26:51,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:51,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:51,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:51,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:51,075 INFO L87 Difference]: Start difference. First operand 202 states and 528 transitions. Second operand 3 states. [2020-07-28 21:26:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,113 INFO L93 Difference]: Finished difference Result 198 states and 514 transitions. [2020-07-28 21:26:51,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:51,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:26:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:51,115 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:26:51,148 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 21:26:51,153 INFO L225 Difference]: With dead ends: 198 [2020-07-28 21:26:51,153 INFO L226 Difference]: Without dead ends: 198 [2020-07-28 21:26:51,154 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 21:26:51,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-07-28 21:26:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-07-28 21:26:51,200 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:51,200 INFO L82 GeneralOperation]: Start isEquivalent. First operand 198 states. Second operand 198 states. [2020-07-28 21:26:51,200 INFO L74 IsIncluded]: Start isIncluded. First operand 198 states. Second operand 198 states. [2020-07-28 21:26:51,200 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 198 states. [2020-07-28 21:26:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,211 INFO L93 Difference]: Finished difference Result 198 states and 514 transitions. [2020-07-28 21:26:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 514 transitions. [2020-07-28 21:26:51,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,212 INFO L74 IsIncluded]: Start isIncluded. First operand 198 states. Second operand 198 states. [2020-07-28 21:26:51,213 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 198 states. [2020-07-28 21:26:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,224 INFO L93 Difference]: Finished difference Result 198 states and 514 transitions. [2020-07-28 21:26:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 514 transitions. [2020-07-28 21:26:51,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,225 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:51,225 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:51,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-07-28 21:26:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 514 transitions. [2020-07-28 21:26:51,236 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 514 transitions. Word has length 10 [2020-07-28 21:26:51,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:51,236 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 514 transitions. [2020-07-28 21:26:51,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 514 transitions. [2020-07-28 21:26:51,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:26:51,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:51,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:51,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:26:51,237 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:51,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:51,238 INFO L82 PathProgramCache]: Analyzing trace with hash 178653510, now seen corresponding path program 1 times [2020-07-28 21:26:51,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:51,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605761990] [2020-07-28 21:26:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:51,317 INFO L280 TraceCheckUtils]: 0: Hoare triple {3925#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,318 INFO L280 TraceCheckUtils]: 1: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [163] L766-->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] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,320 INFO L280 TraceCheckUtils]: 2: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,320 INFO L280 TraceCheckUtils]: 3: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [165] L768-->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] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,321 INFO L280 TraceCheckUtils]: 4: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,322 INFO L280 TraceCheckUtils]: 5: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,323 INFO L280 TraceCheckUtils]: 6: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [167] L770-->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] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,324 INFO L280 TraceCheckUtils]: 7: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} 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_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,325 INFO L280 TraceCheckUtils]: 8: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,326 INFO L280 TraceCheckUtils]: 9: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {3927#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,327 INFO L280 TraceCheckUtils]: 10: Hoare triple {3927#(= 0 ~__unbuffered_p0_EAX~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3926#false} is VALID [2020-07-28 21:26:51,328 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 21:26:51,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605761990] [2020-07-28 21:26:51,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:51,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:26:51,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118391788] [2020-07-28 21:26:51,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:26:51,332 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:51,332 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:51,345 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 21:26:51,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:51,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:51,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:51,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:51,346 INFO L87 Difference]: Start difference. First operand 198 states and 514 transitions. Second operand 3 states. [2020-07-28 21:26:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,395 INFO L93 Difference]: Finished difference Result 192 states and 495 transitions. [2020-07-28 21:26:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:51,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:26:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:51,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:51,398 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:26:51,447 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 21:26:51,452 INFO L225 Difference]: With dead ends: 192 [2020-07-28 21:26:51,452 INFO L226 Difference]: Without dead ends: 192 [2020-07-28 21:26:51,452 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 21:26:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-28 21:26:51,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,488 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,488 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,488 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,488 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,489 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,489 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,489 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,489 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,490 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,490 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,490 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,490 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,491 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,491 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,491 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,491 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-28 21:26:51,513 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:51,513 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-28 21:26:51,513 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:26:51,513 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:26:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,520 INFO L93 Difference]: Finished difference Result 192 states and 495 transitions. [2020-07-28 21:26:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 495 transitions. [2020-07-28 21:26:51,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,521 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,522 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:26:51,522 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:26:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,529 INFO L93 Difference]: Finished difference Result 192 states and 495 transitions. [2020-07-28 21:26:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 495 transitions. [2020-07-28 21:26:51,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,530 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,530 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:51,530 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:51,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-28 21:26:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 495 transitions. [2020-07-28 21:26:51,537 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 495 transitions. Word has length 11 [2020-07-28 21:26:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:51,537 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 495 transitions. [2020-07-28 21:26:51,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 495 transitions. [2020-07-28 21:26:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:26:51,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:51,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:51,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:26:51,539 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:51,540 INFO L82 PathProgramCache]: Analyzing trace with hash 707253593, now seen corresponding path program 1 times [2020-07-28 21:26:51,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:51,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991449417] [2020-07-28 21:26:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:51,627 INFO L280 TraceCheckUtils]: 0: Hoare triple {4890#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4890#true} is VALID [2020-07-28 21:26:51,628 INFO L280 TraceCheckUtils]: 1: Hoare triple {4890#true} [163] L766-->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] {4890#true} is VALID [2020-07-28 21:26:51,628 INFO L280 TraceCheckUtils]: 2: Hoare triple {4890#true} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4890#true} is VALID [2020-07-28 21:26:51,630 INFO L280 TraceCheckUtils]: 3: Hoare triple {4890#true} [146] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,631 INFO L280 TraceCheckUtils]: 4: Hoare triple {4892#(= 1 ~x~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,632 INFO L280 TraceCheckUtils]: 5: Hoare triple {4892#(= 1 ~x~0)} [165] L768-->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] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,633 INFO L280 TraceCheckUtils]: 6: Hoare triple {4892#(= 1 ~x~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,634 INFO L280 TraceCheckUtils]: 7: Hoare triple {4892#(= 1 ~x~0)} [167] L770-->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] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,634 INFO L280 TraceCheckUtils]: 8: Hoare triple {4892#(= 1 ~x~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,635 INFO L280 TraceCheckUtils]: 9: Hoare triple {4892#(= 1 ~x~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,636 INFO L280 TraceCheckUtils]: 10: Hoare triple {4892#(= 1 ~x~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {4892#(= 1 ~x~0)} is VALID [2020-07-28 21:26:51,637 INFO L280 TraceCheckUtils]: 11: Hoare triple {4892#(= 1 ~x~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4891#false} is VALID [2020-07-28 21:26:51,638 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 21:26:51,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991449417] [2020-07-28 21:26:51,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:51,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:51,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938584636] [2020-07-28 21:26:51,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-28 21:26:51,640 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:51,640 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:51,657 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 21:26:51,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:51,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:51,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:51,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:51,658 INFO L87 Difference]: Start difference. First operand 192 states and 495 transitions. Second operand 3 states. [2020-07-28 21:26:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,719 INFO L93 Difference]: Finished difference Result 260 states and 637 transitions. [2020-07-28 21:26:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:51,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-28 21:26:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:51,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:26:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:26:51,722 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 30 transitions. [2020-07-28 21:26:51,765 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:51,770 INFO L225 Difference]: With dead ends: 260 [2020-07-28 21:26:51,770 INFO L226 Difference]: Without dead ends: 200 [2020-07-28 21:26:51,772 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 21:26:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-07-28 21:26:51,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 188. [2020-07-28 21:26:51,824 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:51,824 INFO L82 GeneralOperation]: Start isEquivalent. First operand 200 states. Second operand 188 states. [2020-07-28 21:26:51,825 INFO L74 IsIncluded]: Start isIncluded. First operand 200 states. Second operand 188 states. [2020-07-28 21:26:51,825 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 188 states. [2020-07-28 21:26:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,831 INFO L93 Difference]: Finished difference Result 200 states and 473 transitions. [2020-07-28 21:26:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 473 transitions. [2020-07-28 21:26:51,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,832 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,833 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 200 states. [2020-07-28 21:26:51,833 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 200 states. [2020-07-28 21:26:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:51,840 INFO L93 Difference]: Finished difference Result 200 states and 473 transitions. [2020-07-28 21:26:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 473 transitions. [2020-07-28 21:26:51,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:51,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:51,841 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:51,841 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-28 21:26:51,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 453 transitions. [2020-07-28 21:26:51,847 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 453 transitions. Word has length 12 [2020-07-28 21:26:51,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:51,847 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 453 transitions. [2020-07-28 21:26:51,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:51,847 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 453 transitions. [2020-07-28 21:26:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:26:51,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:51,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:51,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:26:51,849 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:51,849 INFO L82 PathProgramCache]: Analyzing trace with hash 131136693, now seen corresponding path program 1 times [2020-07-28 21:26:51,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:51,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172619951] [2020-07-28 21:26:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:51,935 INFO L280 TraceCheckUtils]: 0: Hoare triple {5931#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5933#(= 0 ~y~0)} is VALID [2020-07-28 21:26:51,937 INFO L280 TraceCheckUtils]: 1: Hoare triple {5933#(= 0 ~y~0)} [163] L766-->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] {5933#(= 0 ~y~0)} is VALID [2020-07-28 21:26:51,939 INFO L280 TraceCheckUtils]: 2: Hoare triple {5933#(= 0 ~y~0)} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,944 INFO L280 TraceCheckUtils]: 3: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,945 INFO L280 TraceCheckUtils]: 4: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [165] L768-->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] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,946 INFO L280 TraceCheckUtils]: 5: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,947 INFO L280 TraceCheckUtils]: 6: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,954 INFO L280 TraceCheckUtils]: 7: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [167] L770-->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] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,955 INFO L280 TraceCheckUtils]: 8: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} 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_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,956 INFO L280 TraceCheckUtils]: 9: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,958 INFO L280 TraceCheckUtils]: 10: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {5934#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:51,959 INFO L280 TraceCheckUtils]: 11: Hoare triple {5934#(= 0 ~__unbuffered_p0_EAX~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5932#false} is VALID [2020-07-28 21:26:51,960 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 21:26:51,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172619951] [2020-07-28 21:26:51,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:51,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:51,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33960912] [2020-07-28 21:26:51,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:51,961 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:51,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:51,979 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 21:26:51,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:51,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:51,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:51,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:51,980 INFO L87 Difference]: Start difference. First operand 188 states and 453 transitions. Second operand 4 states. [2020-07-28 21:26:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,065 INFO L93 Difference]: Finished difference Result 232 states and 527 transitions. [2020-07-28 21:26:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:26:52,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2020-07-28 21:26:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2020-07-28 21:26:52,067 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2020-07-28 21:26:52,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,132 INFO L225 Difference]: With dead ends: 232 [2020-07-28 21:26:52,133 INFO L226 Difference]: Without dead ends: 106 [2020-07-28 21:26:52,133 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 21:26:52,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-07-28 21:26:52,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-07-28 21:26:52,155 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:52,155 INFO L82 GeneralOperation]: Start isEquivalent. First operand 106 states. Second operand 106 states. [2020-07-28 21:26:52,155 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 106 states. [2020-07-28 21:26:52,156 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 106 states. [2020-07-28 21:26:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,158 INFO L93 Difference]: Finished difference Result 106 states and 231 transitions. [2020-07-28 21:26:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 231 transitions. [2020-07-28 21:26:52,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,159 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,159 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 106 states. [2020-07-28 21:26:52,159 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 106 states. [2020-07-28 21:26:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,162 INFO L93 Difference]: Finished difference Result 106 states and 231 transitions. [2020-07-28 21:26:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 231 transitions. [2020-07-28 21:26:52,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,163 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,163 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:52,163 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-28 21:26:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 231 transitions. [2020-07-28 21:26:52,166 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 231 transitions. Word has length 12 [2020-07-28 21:26:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:52,166 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 231 transitions. [2020-07-28 21:26:52,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 231 transitions. [2020-07-28 21:26:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:26:52,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:52,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:52,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:26:52,167 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:52,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:52,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1243290927, now seen corresponding path program 2 times [2020-07-28 21:26:52,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:52,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064161263] [2020-07-28 21:26:52,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:52,212 INFO L280 TraceCheckUtils]: 0: Hoare triple {6595#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {6597#(= 0 ~y~0)} [163] L766-->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] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {6597#(= 0 ~y~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,214 INFO L280 TraceCheckUtils]: 3: Hoare triple {6597#(= 0 ~y~0)} [165] L768-->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] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,215 INFO L280 TraceCheckUtils]: 4: Hoare triple {6597#(= 0 ~y~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,216 INFO L280 TraceCheckUtils]: 5: Hoare triple {6597#(= 0 ~y~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,216 INFO L280 TraceCheckUtils]: 6: Hoare triple {6597#(= 0 ~y~0)} [167] L770-->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] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,217 INFO L280 TraceCheckUtils]: 7: Hoare triple {6597#(= 0 ~y~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6597#(= 0 ~y~0)} is VALID [2020-07-28 21:26:52,218 INFO L280 TraceCheckUtils]: 8: Hoare triple {6597#(= 0 ~y~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6598#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:26:52,219 INFO L280 TraceCheckUtils]: 9: Hoare triple {6598#(= 0 ~__unbuffered_p2_EAX~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {6598#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:26:52,219 INFO L280 TraceCheckUtils]: 10: Hoare triple {6598#(= 0 ~__unbuffered_p2_EAX~0)} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6598#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:26:52,220 INFO L280 TraceCheckUtils]: 11: Hoare triple {6598#(= 0 ~__unbuffered_p2_EAX~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6596#false} is VALID [2020-07-28 21:26:52,221 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 21:26:52,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064161263] [2020-07-28 21:26:52,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:52,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:52,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532330095] [2020-07-28 21:26:52,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:52,222 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:52,222 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:52,238 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 21:26:52,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:52,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:52,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:52,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:52,239 INFO L87 Difference]: Start difference. First operand 106 states and 231 transitions. Second operand 4 states. [2020-07-28 21:26:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,297 INFO L93 Difference]: Finished difference Result 124 states and 264 transitions. [2020-07-28 21:26:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:26:52,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:52,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-07-28 21:26:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-07-28 21:26:52,299 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 31 transitions. [2020-07-28 21:26:52,335 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,336 INFO L225 Difference]: With dead ends: 124 [2020-07-28 21:26:52,337 INFO L226 Difference]: Without dead ends: 64 [2020-07-28 21:26:52,337 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 21:26:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-28 21:26:52,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-28 21:26:52,351 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:52,352 INFO L82 GeneralOperation]: Start isEquivalent. First operand 64 states. Second operand 64 states. [2020-07-28 21:26:52,352 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2020-07-28 21:26:52,352 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2020-07-28 21:26:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,354 INFO L93 Difference]: Finished difference Result 64 states and 130 transitions. [2020-07-28 21:26:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 130 transitions. [2020-07-28 21:26:52,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,354 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,354 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2020-07-28 21:26:52,355 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2020-07-28 21:26:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,356 INFO L93 Difference]: Finished difference Result 64 states and 130 transitions. [2020-07-28 21:26:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 130 transitions. [2020-07-28 21:26:52,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,357 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,357 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:52,357 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 21:26:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 130 transitions. [2020-07-28 21:26:52,359 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 130 transitions. Word has length 12 [2020-07-28 21:26:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:52,359 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 130 transitions. [2020-07-28 21:26:52,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 130 transitions. [2020-07-28 21:26:52,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:26:52,360 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:52,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:52,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:26:52,360 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:52,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:52,360 INFO L82 PathProgramCache]: Analyzing trace with hash -589742481, now seen corresponding path program 1 times [2020-07-28 21:26:52,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:52,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554104119] [2020-07-28 21:26:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:52,398 INFO L280 TraceCheckUtils]: 0: Hoare triple {6983#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6983#true} is VALID [2020-07-28 21:26:52,399 INFO L280 TraceCheckUtils]: 1: Hoare triple {6983#true} [163] L766-->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] {6983#true} is VALID [2020-07-28 21:26:52,399 INFO L280 TraceCheckUtils]: 2: Hoare triple {6983#true} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {6983#true} is VALID [2020-07-28 21:26:52,399 INFO L280 TraceCheckUtils]: 3: Hoare triple {6983#true} [165] L768-->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] {6983#true} is VALID [2020-07-28 21:26:52,400 INFO L280 TraceCheckUtils]: 4: Hoare triple {6983#true} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6983#true} is VALID [2020-07-28 21:26:52,401 INFO L280 TraceCheckUtils]: 5: Hoare triple {6983#true} [152] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6985#(= 1 ~y~0)} is VALID [2020-07-28 21:26:52,401 INFO L280 TraceCheckUtils]: 6: Hoare triple {6985#(= 1 ~y~0)} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,402 INFO L280 TraceCheckUtils]: 7: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,403 INFO L280 TraceCheckUtils]: 8: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [167] L770-->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] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,403 INFO L280 TraceCheckUtils]: 9: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} 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_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,404 INFO L280 TraceCheckUtils]: 10: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,405 INFO L280 TraceCheckUtils]: 11: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {6986#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:52,406 INFO L280 TraceCheckUtils]: 12: Hoare triple {6986#(= 1 ~__unbuffered_p0_EAX~0)} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6984#false} is VALID [2020-07-28 21:26:52,406 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 21:26:52,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554104119] [2020-07-28 21:26:52,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:52,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:26:52,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97985647] [2020-07-28 21:26:52,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:52,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:52,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:52,424 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:52,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:52,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:52,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:52,425 INFO L87 Difference]: Start difference. First operand 64 states and 130 transitions. Second operand 4 states. [2020-07-28 21:26:52,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,509 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2020-07-28 21:26:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:26:52,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:52,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-07-28 21:26:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-07-28 21:26:52,511 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 32 transitions. [2020-07-28 21:26:52,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,572 INFO L225 Difference]: With dead ends: 72 [2020-07-28 21:26:52,572 INFO L226 Difference]: Without dead ends: 52 [2020-07-28 21:26:52,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:26:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-28 21:26:52,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-07-28 21:26:52,590 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:52,590 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 52 states. [2020-07-28 21:26:52,590 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:26:52,591 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:26:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,592 INFO L93 Difference]: Finished difference Result 52 states and 96 transitions. [2020-07-28 21:26:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-07-28 21:26:52,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,593 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,593 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:26:52,593 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:26:52,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,595 INFO L93 Difference]: Finished difference Result 52 states and 96 transitions. [2020-07-28 21:26:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-07-28 21:26:52,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,596 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:52,596 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-28 21:26:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-07-28 21:26:52,599 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-07-28 21:26:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:52,601 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-07-28 21:26:52,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-07-28 21:26:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:26:52,602 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:52,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:52,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:26:52,603 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:52,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:52,604 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-07-28 21:26:52,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:52,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432908476] [2020-07-28 21:26:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:52,723 INFO L280 TraceCheckUtils]: 0: Hoare triple {7271#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,724 INFO L280 TraceCheckUtils]: 1: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,725 INFO L280 TraceCheckUtils]: 2: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,726 INFO L280 TraceCheckUtils]: 3: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,727 INFO L280 TraceCheckUtils]: 4: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,728 INFO L280 TraceCheckUtils]: 5: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [152] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,728 INFO L280 TraceCheckUtils]: 6: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,729 INFO L280 TraceCheckUtils]: 7: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [167] L770-->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] {7273#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:52,730 INFO L280 TraceCheckUtils]: 8: Hoare triple {7273#(= 0 ~__unbuffered_cnt~0)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:52,731 INFO L280 TraceCheckUtils]: 9: Hoare triple {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:52,732 INFO L280 TraceCheckUtils]: 10: Hoare triple {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:52,733 INFO L280 TraceCheckUtils]: 11: Hoare triple {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:52,735 INFO L280 TraceCheckUtils]: 12: Hoare triple {7274#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7272#false} is VALID [2020-07-28 21:26:52,735 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 21:26:52,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432908476] [2020-07-28 21:26:52,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:52,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:52,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363343611] [2020-07-28 21:26:52,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:52,738 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:52,738 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:52,755 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:52,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:52,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:52,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:52,756 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 4 states. [2020-07-28 21:26:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,840 INFO L93 Difference]: Finished difference Result 57 states and 96 transitions. [2020-07-28 21:26:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:26:52,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-07-28 21:26:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-07-28 21:26:52,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 39 transitions. [2020-07-28 21:26:52,887 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:52,888 INFO L225 Difference]: With dead ends: 57 [2020-07-28 21:26:52,888 INFO L226 Difference]: Without dead ends: 43 [2020-07-28 21:26:52,889 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 21:26:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-28 21:26:52,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-07-28 21:26:52,901 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:52,901 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 43 states. [2020-07-28 21:26:52,901 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2020-07-28 21:26:52,901 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2020-07-28 21:26:52,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,902 INFO L93 Difference]: Finished difference Result 43 states and 70 transitions. [2020-07-28 21:26:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-07-28 21:26:52,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,903 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,903 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2020-07-28 21:26:52,904 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2020-07-28 21:26:52,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:52,905 INFO L93 Difference]: Finished difference Result 43 states and 70 transitions. [2020-07-28 21:26:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-07-28 21:26:52,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:52,905 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:52,906 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:52,906 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-28 21:26:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 70 transitions. [2020-07-28 21:26:52,907 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 70 transitions. Word has length 13 [2020-07-28 21:26:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:52,908 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 70 transitions. [2020-07-28 21:26:52,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-07-28 21:26:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:26:52,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:52,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:52,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:26:52,911 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:52,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:52,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1574125730, now seen corresponding path program 1 times [2020-07-28 21:26:52,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:52,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081917218] [2020-07-28 21:26:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:53,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {7508#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,008 INFO L280 TraceCheckUtils]: 2: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,010 INFO L280 TraceCheckUtils]: 3: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,013 INFO L280 TraceCheckUtils]: 4: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,013 INFO L280 TraceCheckUtils]: 5: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [152] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7510#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,020 INFO L280 TraceCheckUtils]: 6: Hoare triple {7510#(= 0 ~__unbuffered_cnt~0)} [197] L731-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_17|) (= v_~__unbuffered_cnt~0_71 (+ v_~__unbuffered_cnt~0_72 1)) (= |v_P1Thread1of1ForFork1_#res.offset_17| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_72} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_71, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_17|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7511#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,021 INFO L280 TraceCheckUtils]: 7: Hoare triple {7511#(<= ~__unbuffered_cnt~0 1)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {7511#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,023 INFO L280 TraceCheckUtils]: 8: Hoare triple {7511#(<= ~__unbuffered_cnt~0 1)} [167] L770-->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] {7511#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,024 INFO L280 TraceCheckUtils]: 9: Hoare triple {7511#(<= ~__unbuffered_cnt~0 1)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} 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_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} 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] {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:53,026 INFO L280 TraceCheckUtils]: 10: Hoare triple {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:53,027 INFO L280 TraceCheckUtils]: 11: Hoare triple {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:53,028 INFO L280 TraceCheckUtils]: 12: Hoare triple {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:53,029 INFO L280 TraceCheckUtils]: 13: Hoare triple {7512#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7509#false} is VALID [2020-07-28 21:26:53,030 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 21:26:53,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081917218] [2020-07-28 21:26:53,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:53,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:26:53,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119625660] [2020-07-28 21:26:53,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:26:53,032 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:53,032 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:26:53,050 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 21:26:53,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:26:53,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:53,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:26:53,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:26:53,051 INFO L87 Difference]: Start difference. First operand 43 states and 70 transitions. Second operand 5 states. [2020-07-28 21:26:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,164 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-07-28 21:26:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:26:53,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:26:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:26:53,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2020-07-28 21:26:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:26:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2020-07-28 21:26:53,166 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 34 transitions. [2020-07-28 21:26:53,206 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:53,207 INFO L225 Difference]: With dead ends: 39 [2020-07-28 21:26:53,207 INFO L226 Difference]: Without dead ends: 31 [2020-07-28 21:26:53,208 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 21:26:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-28 21:26:53,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-07-28 21:26:53,215 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:53,215 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 31 states. [2020-07-28 21:26:53,215 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2020-07-28 21:26:53,216 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2020-07-28 21:26:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,216 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2020-07-28 21:26:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-07-28 21:26:53,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:53,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:53,217 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 31 states. [2020-07-28 21:26:53,217 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 31 states. [2020-07-28 21:26:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,218 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2020-07-28 21:26:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-07-28 21:26:53,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:53,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:53,219 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:53,219 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:53,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-28 21:26:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-07-28 21:26:53,220 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 14 [2020-07-28 21:26:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:53,220 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-07-28 21:26:53,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:26:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-07-28 21:26:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:26:53,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:53,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:53,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:26:53,222 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:53,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:53,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-07-28 21:26:53,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:53,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784290010] [2020-07-28 21:26:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:53,308 INFO L280 TraceCheckUtils]: 0: Hoare triple {7680#true} [220] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~y~0_50) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16|)) (= 0 v_~main$tmp_guard0~0_32) (= v_~__unbuffered_cnt~0_118 0) (= 0 v_~__unbuffered_p2_EAX~0_33) (= 0 |v_#NULL.offset_5|) (= 0 v_~__unbuffered_p0_EAX~0_37) (= 0 v_~x~0_43) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t1819~0.base_16| 1)) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t1819~0.base_16| 4) |v_#length_21|) (= |v_#memory_int_19| (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t1819~0.base_16|) |v_ULTIMATE.start_main_~#t1819~0.offset_13| 0))) (= 0 |v_ULTIMATE.start_main_~#t1819~0.offset_13|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1819~0.base_16|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~main$tmp_guard1~0_32))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, ULTIMATE.start_main_~#t1819~0.base=|v_ULTIMATE.start_main_~#t1819~0.base_16|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t1819~0.offset=|v_ULTIMATE.start_main_~#t1819~0.offset_13|, #length=|v_#length_21|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_14|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_118, ~y~0=v_~y~0_50, ~x~0=v_~x~0_43} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1820~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#res, ULTIMATE.start_main_~#t1819~0.base, #valid, #memory_int, ULTIMATE.start_main_~#t1819~0.offset, #length, ULTIMATE.start_main_~#t1821~0.offset, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,309 INFO L280 TraceCheckUtils]: 1: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,310 INFO L280 TraceCheckUtils]: 2: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [206] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1820~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1820~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t1820~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1820~0.base_11|) (= |v_#memory_int_15| (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1820~0.base_11|) |v_ULTIMATE.start_main_~#t1820~0.offset_10| 1))) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1820~0.base_11| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t1820~0.offset=|v_ULTIMATE.start_main_~#t1820~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1820~0.base=|v_ULTIMATE.start_main_~#t1820~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1820~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1820~0.base] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,311 INFO L280 TraceCheckUtils]: 3: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,312 INFO L280 TraceCheckUtils]: 4: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_18) (= |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_18} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,326 INFO L280 TraceCheckUtils]: 5: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [152] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7682#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:26:53,327 INFO L280 TraceCheckUtils]: 6: Hoare triple {7682#(= 0 ~__unbuffered_cnt~0)} [197] L731-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_17|) (= v_~__unbuffered_cnt~0_71 (+ v_~__unbuffered_cnt~0_72 1)) (= |v_P1Thread1of1ForFork1_#res.offset_17| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_72} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_71, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_17|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,328 INFO L280 TraceCheckUtils]: 7: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [205] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1821~0.base_13|)) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1821~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t1821~0.offset_11|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13| 1) |v_#valid_33|) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1821~0.base_13|) |v_ULTIMATE.start_main_~#t1821~0.offset_11| 2)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1821~0.base_13|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1821~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1821~0.base=|v_ULTIMATE.start_main_~#t1821~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1821~0.offset=|v_ULTIMATE.start_main_~#t1821~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1821~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t1821~0.offset, #length] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,329 INFO L280 TraceCheckUtils]: 8: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [167] L770-->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] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,330 INFO L280 TraceCheckUtils]: 9: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [187] P2ENTRY-->L743: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_19 v_~__unbuffered_p2_EAX~0_15)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_15, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_19} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,331 INFO L280 TraceCheckUtils]: 10: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [158] L743-->L746: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,332 INFO L280 TraceCheckUtils]: 11: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [193] P0ENTRY-->L713: Formula: (and (= v_~y~0_20 v_~__unbuffered_p0_EAX~0_16) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_20} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, 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_20, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7683#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:26:53,334 INFO L280 TraceCheckUtils]: 12: Hoare triple {7683#(<= ~__unbuffered_cnt~0 1)} [204] L746-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_17|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_17|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7684#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:26:53,339 INFO L280 TraceCheckUtils]: 13: Hoare triple {7684#(<= ~__unbuffered_cnt~0 2)} [201] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_73))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_19)) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_19))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7685#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:26:53,342 INFO L280 TraceCheckUtils]: 14: Hoare triple {7685#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [219] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 1 v_~__unbuffered_p2_EAX~0_32) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_13| (mod v_~main$tmp_guard1~0_31 256)) (= 2 v_~__unbuffered_p0_EAX~0_36) (= 0 v_~main$tmp_guard1~0_31) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|) (= 2 v_~x~0_42) (= 2 v_~y~0_49)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_23|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_31, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_49, ~x~0=v_~x~0_42, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_13|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7681#false} is VALID [2020-07-28 21:26:53,342 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 21:26:53,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784290010] [2020-07-28 21:26:53,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:53,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:26:53,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325854248] [2020-07-28 21:26:53,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:26:53,344 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:53,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:26:53,365 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:53,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:26:53,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:53,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:26:53,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:26:53,366 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 6 states. [2020-07-28 21:26:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,449 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-07-28 21:26:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:26:53,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:26:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:26:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-07-28 21:26:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:26:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-07-28 21:26:53,451 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 24 transitions. [2020-07-28 21:26:53,483 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:53,483 INFO L225 Difference]: With dead ends: 28 [2020-07-28 21:26:53,483 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:26:53,484 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 21:26:53,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:26:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:26:53,484 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:53,484 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:53,484 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:53,485 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,485 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:26:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:53,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:53,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:53,486 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:53,486 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:53,486 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:26:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:53,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:53,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:53,487 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:53,487 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:26:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:26:53,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 21:26:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:53,488 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:26:53,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:26:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:53,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:53,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 21:26:53,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:26:53 BasicIcfg [2020-07-28 21:26:53,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:26:53,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:26:53,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:26:53,495 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:26:53,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:47" (3/4) ... [2020-07-28 21:26:53,499 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:26:53,505 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:26:53,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:26:53,506 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:26:53,512 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:26:53,513 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:26:53,513 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:26:53,579 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:26:53,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:26:53,589 INFO L168 Benchmark]: Toolchain (without parser) took 7834.53 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). Peak memory consumption was 198.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:26:53,591 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:26:53,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:26:53,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.80 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 21:26:53,592 INFO L168 Benchmark]: Boogie Preprocessor took 31.50 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 21:26:53,592 INFO L168 Benchmark]: RCFGBuilder took 562.23 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 21:26:53,596 INFO L168 Benchmark]: TraceAbstraction took 6380.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.0 MB). Peak memory consumption was 175.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:26:53,596 INFO L168 Benchmark]: Witness Printer took 92.08 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:26:53,599 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 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 562.23 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 6380.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.0 MB). Peak memory consumption was 175.7 MB. Max. memory is 11.5 GB. * Witness Printer took 92.08 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 673 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 204 SDtfs, 103 SDslu, 190 SDs, 0 SdLazy, 102 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 4161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...