./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_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/safe002_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 67d1b927cfd84d7e5da2ad6ec0db6bfc33301cf9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:27:43,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:27:43,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:27:43,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:27:43,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:27:43,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:27:43,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:27:43,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:27:43,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:27:43,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:27:43,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:27:43,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:27:43,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:27:43,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:27:43,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:27:43,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:27:43,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:27:43,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:27:43,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:27:43,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:27:43,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:27:43,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:27:43,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:27:43,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:27:43,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:27:43,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:27:43,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:27:43,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:27:43,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:27:43,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:27:43,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:27:43,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:27:43,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:27:43,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:27:43,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:27:43,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:27:43,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:27:43,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:27:43,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:27:43,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:27:43,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:27:43,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:27:43,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:27:43,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:27:43,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:27:43,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:27:43,778 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:27:43,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:27:43,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:27:43,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:27:43,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:27:43,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:27:43,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:27:43,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:27:43,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:27:43,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:27:43,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:27:43,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:27:43,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:27:43,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:27:43,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:27:43,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:27:43,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:27:43,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:27:43,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:27:43,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:27:43,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:27:43,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:27:43,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:27:43,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:27:43,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:27:43,785 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 -> 67d1b927cfd84d7e5da2ad6ec0db6bfc33301cf9 [2020-07-28 21:27:44,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:27:44,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:27:44,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:27:44,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:27:44,112 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:27:44,113 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2020-07-28 21:27:44,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a027125/d2fac76fa80240e59a32d8a1ff8807e1/FLAGe3812f595 [2020-07-28 21:27:44,662 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:27:44,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2020-07-28 21:27:44,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a027125/d2fac76fa80240e59a32d8a1ff8807e1/FLAGe3812f595 [2020-07-28 21:27:45,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a027125/d2fac76fa80240e59a32d8a1ff8807e1 [2020-07-28 21:27:45,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:27:45,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:27:45,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:27:45,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:27:45,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:27:45,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc2697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45, skipping insertion in model container [2020-07-28 21:27:45,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:27:45,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:27:45,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:27:45,642 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:27:45,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:27:45,812 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:27:45,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45 WrapperNode [2020-07-28 21:27:45,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:27:45,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:27:45,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:27:45,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:27:45,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:27:45,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:27:45,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:27:45,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:27:45,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (1/1) ... [2020-07-28 21:27:45,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:27:45,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:27:45,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:27:45,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:27:45,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (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 21:27:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:27:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:27:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:27:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:27:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:27:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:27:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:27:45,967 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 21:27:46,429 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:27:46,429 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:27:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:27:46 BoogieIcfgContainer [2020-07-28 21:27:46,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:27:46,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:27:46,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:27:46,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:27:46,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:27:45" (1/3) ... [2020-07-28 21:27:46,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a276ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:27:46, skipping insertion in model container [2020-07-28 21:27:46,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:27:45" (2/3) ... [2020-07-28 21:27:46,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a276ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:27:46, skipping insertion in model container [2020-07-28 21:27:46,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:27:46" (3/3) ... [2020-07-28 21:27:46,444 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-07-28 21:27:46,452 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:27:46,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:27:46,460 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:27:46,461 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:27:46,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,495 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,495 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,517 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,518 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,518 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,518 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:27:46,533 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:27:46,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:27:46,552 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:27:46,553 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:27:46,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:27:46,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:27:46,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:27:46,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:27:46,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:27:46,568 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:27:46,569 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:27:46,614 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:27:46,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:27:46,622 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:27:46,625 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:27:46,647 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:27:46,648 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:27:46,649 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:27:46,651 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:27:46,652 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:27:48,954 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-07-28 21:27:49,095 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-07-28 21:27:49,095 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-07-28 21:27:49,101 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:27:49,146 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:27:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:27:49,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:27:49,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:49,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:49,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:49,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-07-28 21:27:49,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:49,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829981868] [2020-07-28 21:27:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:49,406 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,408 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,409 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,410 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,411 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,412 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:27:49,414 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:27:49,416 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 21:27:49,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829981868] [2020-07-28 21:27:49,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:49,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:27:49,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755044276] [2020-07-28 21:27:49,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:27:49,427 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:49,431 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:27:49,455 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 21:27:49,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:27:49,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:49,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:27:49,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:27:49,469 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:27:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:49,615 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:27:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:27:49,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:27:49,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:27:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:27:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:27:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:27:49,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:27:49,661 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 21:27:49,688 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:27:49,688 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:27:49,690 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 21:27:49,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:27:49,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:27:49,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:49,810 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:27:49,810 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:27:49,811 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:27:49,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:49,832 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:27:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:27:49,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:49,835 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:49,835 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:27:49,836 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:27:49,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:49,855 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:27:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:27:49,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:49,857 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:49,858 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:49,858 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:27:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:27:49,877 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:27:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:49,878 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:27:49,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:27:49,878 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:27:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:27:49,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:49,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:49,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:27:49,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:49,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-07-28 21:27:49,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:49,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414074001] [2020-07-28 21:27:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:49,960 INFO L280 TraceCheckUtils]: 0: Hoare triple {1836#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {1838#(= 0 ~y~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,962 INFO L280 TraceCheckUtils]: 2: Hoare triple {1838#(= 0 ~y~0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,963 INFO L280 TraceCheckUtils]: 3: Hoare triple {1838#(= 0 ~y~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,964 INFO L280 TraceCheckUtils]: 4: Hoare triple {1838#(= 0 ~y~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,965 INFO L280 TraceCheckUtils]: 5: Hoare triple {1838#(= 0 ~y~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:27:49,966 INFO L280 TraceCheckUtils]: 6: Hoare triple {1838#(= 0 ~y~0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1839#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:27:49,966 INFO L280 TraceCheckUtils]: 7: Hoare triple {1839#(= 0 ~__unbuffered_p2_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1839#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:27:49,968 INFO L280 TraceCheckUtils]: 8: Hoare triple {1839#(= 0 ~__unbuffered_p2_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1837#false} is VALID [2020-07-28 21:27:49,968 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 21:27:49,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414074001] [2020-07-28 21:27:49,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:49,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:27:49,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880002025] [2020-07-28 21:27:49,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:27:49,971 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:49,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:27:49,994 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:49,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:27:49,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:49,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:27:49,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:27:49,995 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:27:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,089 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-07-28 21:27:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:27:50,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:27:50,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:27:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:27:50,092 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:27:50,137 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:50,140 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:27:50,141 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:27:50,142 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 21:27:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:27:50,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:27:50,190 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:50,190 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:27:50,191 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:27:50,191 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:27:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,203 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:27:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:27:50,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,204 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:27:50,204 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:27:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,216 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:27:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:27:50,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,217 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:50,217 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:27:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-07-28 21:27:50,228 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-07-28 21:27:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:50,228 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-07-28 21:27:50,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:27:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:27:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:27:50,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:50,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:50,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:27:50,230 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:50,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:50,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-07-28 21:27:50,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:50,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46928269] [2020-07-28 21:27:50,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:50,313 INFO L280 TraceCheckUtils]: 0: Hoare triple {2670#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,314 INFO L280 TraceCheckUtils]: 1: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,315 INFO L280 TraceCheckUtils]: 2: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,316 INFO L280 TraceCheckUtils]: 3: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,316 INFO L280 TraceCheckUtils]: 4: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,317 INFO L280 TraceCheckUtils]: 5: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,318 INFO L280 TraceCheckUtils]: 6: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,319 INFO L280 TraceCheckUtils]: 7: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,319 INFO L280 TraceCheckUtils]: 8: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,320 INFO L280 TraceCheckUtils]: 9: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:27:50,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2671#false} is VALID [2020-07-28 21:27:50,322 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 21:27:50,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46928269] [2020-07-28 21:27:50,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:50,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:27:50,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353245287] [2020-07-28 21:27:50,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:27:50,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:50,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:27:50,337 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 21:27:50,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:27:50,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:50,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:27:50,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:27:50,339 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-07-28 21:27:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,379 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:27:50,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:27:50,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:27:50,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:50,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:27:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:27:50,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:27:50,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:27:50,381 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:27:50,415 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 21:27:50,418 INFO L225 Difference]: With dead ends: 140 [2020-07-28 21:27:50,418 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 21:27:50,419 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 21:27:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 21:27:50,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-28 21:27:50,461 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:50,461 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 140 states. [2020-07-28 21:27:50,461 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:27:50,461 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:27:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,468 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:27:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:27:50,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,469 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,470 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:27:50,470 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:27:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,477 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:27:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:27:50,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,478 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:50,479 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 21:27:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-07-28 21:27:50,486 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-07-28 21:27:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:50,486 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-07-28 21:27:50,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:27:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:27:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:27:50,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:50,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:50,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:27:50,488 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:50,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:50,488 INFO L82 PathProgramCache]: Analyzing trace with hash -53165768, now seen corresponding path program 1 times [2020-07-28 21:27:50,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:50,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494574106] [2020-07-28 21:27:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:50,569 INFO L280 TraceCheckUtils]: 0: Hoare triple {3375#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {3377#(= 0 ~y~0)} is VALID [2020-07-28 21:27:50,570 INFO L280 TraceCheckUtils]: 1: Hoare triple {3377#(= 0 ~y~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3377#(= 0 ~y~0)} is VALID [2020-07-28 21:27:50,571 INFO L280 TraceCheckUtils]: 2: Hoare triple {3377#(= 0 ~y~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,572 INFO L280 TraceCheckUtils]: 3: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,572 INFO L280 TraceCheckUtils]: 4: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,573 INFO L280 TraceCheckUtils]: 5: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,573 INFO L280 TraceCheckUtils]: 6: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,574 INFO L280 TraceCheckUtils]: 7: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,574 INFO L280 TraceCheckUtils]: 8: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,575 INFO L280 TraceCheckUtils]: 9: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,575 INFO L280 TraceCheckUtils]: 10: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,576 INFO L280 TraceCheckUtils]: 11: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3376#false} is VALID [2020-07-28 21:27:50,577 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 21:27:50,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494574106] [2020-07-28 21:27:50,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:50,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:27:50,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727816023] [2020-07-28 21:27:50,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:27:50,578 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:50,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:27:50,601 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 21:27:50,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:27:50,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:50,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:27:50,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:27:50,602 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-07-28 21:27:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,678 INFO L93 Difference]: Finished difference Result 200 states and 485 transitions. [2020-07-28 21:27:50,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:27:50,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:27:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:27:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:27:50,680 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 33 transitions. [2020-07-28 21:27:50,724 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:50,726 INFO L225 Difference]: With dead ends: 200 [2020-07-28 21:27:50,726 INFO L226 Difference]: Without dead ends: 110 [2020-07-28 21:27:50,728 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 21:27:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-28 21:27:50,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-28 21:27:50,763 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:50,763 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states. Second operand 110 states. [2020-07-28 21:27:50,763 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:27:50,763 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:27:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,769 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:27:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:27:50,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,770 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,770 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:27:50,771 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:27:50,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,776 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:27:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:27:50,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:50,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:50,777 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:50,777 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-28 21:27:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 265 transitions. [2020-07-28 21:27:50,783 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 265 transitions. Word has length 12 [2020-07-28 21:27:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:50,783 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 265 transitions. [2020-07-28 21:27:50,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:27:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:27:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:27:50,784 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:50,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:50,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:27:50,785 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:50,785 INFO L82 PathProgramCache]: Analyzing trace with hash -179241226, now seen corresponding path program 2 times [2020-07-28 21:27:50,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:50,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670971862] [2020-07-28 21:27:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:50,835 INFO L280 TraceCheckUtils]: 0: Hoare triple {4023#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4023#true} is VALID [2020-07-28 21:27:50,835 INFO L280 TraceCheckUtils]: 1: Hoare triple {4023#true} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4023#true} is VALID [2020-07-28 21:27:50,836 INFO L280 TraceCheckUtils]: 2: Hoare triple {4023#true} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4023#true} is VALID [2020-07-28 21:27:50,836 INFO L280 TraceCheckUtils]: 3: Hoare triple {4023#true} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4023#true} is VALID [2020-07-28 21:27:50,836 INFO L280 TraceCheckUtils]: 4: Hoare triple {4023#true} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4023#true} is VALID [2020-07-28 21:27:50,837 INFO L280 TraceCheckUtils]: 5: Hoare triple {4023#true} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {4023#true} is VALID [2020-07-28 21:27:50,837 INFO L280 TraceCheckUtils]: 6: Hoare triple {4023#true} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4023#true} is VALID [2020-07-28 21:27:50,838 INFO L280 TraceCheckUtils]: 7: Hoare triple {4023#true} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4025#(= 1 ~y~0)} is VALID [2020-07-28 21:27:50,839 INFO L280 TraceCheckUtils]: 8: Hoare triple {4025#(= 1 ~y~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,840 INFO L280 TraceCheckUtils]: 9: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,840 INFO L280 TraceCheckUtils]: 10: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:27:50,841 INFO L280 TraceCheckUtils]: 11: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4024#false} is VALID [2020-07-28 21:27:50,842 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 21:27:50,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670971862] [2020-07-28 21:27:50,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:50,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:27:50,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136230812] [2020-07-28 21:27:50,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:27:50,844 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:50,844 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:27:50,859 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 21:27:50,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:27:50,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:50,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:27:50,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:27:50,861 INFO L87 Difference]: Start difference. First operand 110 states and 265 transitions. Second operand 4 states. [2020-07-28 21:27:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:50,965 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-07-28 21:27:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:27:50,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:27:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:27:50,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:27:50,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 37 transitions. [2020-07-28 21:27:51,017 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:51,018 INFO L225 Difference]: With dead ends: 128 [2020-07-28 21:27:51,019 INFO L226 Difference]: Without dead ends: 68 [2020-07-28 21:27:51,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:27:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-28 21:27:51,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-28 21:27:51,060 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:51,060 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 68 states. [2020-07-28 21:27:51,061 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-28 21:27:51,061 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-28 21:27:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,064 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-07-28 21:27:51,064 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:27:51,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,064 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-28 21:27:51,065 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-28 21:27:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,067 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-07-28 21:27:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:27:51,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,068 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:51,068 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:51,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-28 21:27:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-07-28 21:27:51,070 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-07-28 21:27:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:51,071 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-07-28 21:27:51,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:27:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:27:51,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:27:51,072 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:51,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:51,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:27:51,072 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:51,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-07-28 21:27:51,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:51,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224166142] [2020-07-28 21:27:51,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:51,147 INFO L280 TraceCheckUtils]: 0: Hoare triple {4432#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,149 INFO L280 TraceCheckUtils]: 1: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,149 INFO L280 TraceCheckUtils]: 2: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,150 INFO L280 TraceCheckUtils]: 3: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,151 INFO L280 TraceCheckUtils]: 4: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,152 INFO L280 TraceCheckUtils]: 5: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,152 INFO L280 TraceCheckUtils]: 6: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,153 INFO L280 TraceCheckUtils]: 7: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,154 INFO L280 TraceCheckUtils]: 8: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,156 INFO L280 TraceCheckUtils]: 9: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [160] L745-->L748: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,157 INFO L280 TraceCheckUtils]: 10: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {4434#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,158 INFO L280 TraceCheckUtils]: 11: Hoare triple {4434#(= 0 ~__unbuffered_cnt~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4435#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:27:51,160 INFO L280 TraceCheckUtils]: 12: Hoare triple {4435#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4433#false} is VALID [2020-07-28 21:27:51,161 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 21:27:51,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224166142] [2020-07-28 21:27:51,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:51,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:27:51,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289622964] [2020-07-28 21:27:51,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:27:51,162 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:51,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:27:51,187 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 21:27:51,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:27:51,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:27:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:27:51,188 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-07-28 21:27:51,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,299 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-07-28 21:27:51,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:27:51,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:27:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2020-07-28 21:27:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2020-07-28 21:27:51,300 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 45 transitions. [2020-07-28 21:27:51,352 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:51,353 INFO L225 Difference]: With dead ends: 81 [2020-07-28 21:27:51,353 INFO L226 Difference]: Without dead ends: 59 [2020-07-28 21:27:51,354 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 21:27:51,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-28 21:27:51,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-07-28 21:27:51,371 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:51,371 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 59 states. [2020-07-28 21:27:51,371 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 59 states. [2020-07-28 21:27:51,371 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 59 states. [2020-07-28 21:27:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,373 INFO L93 Difference]: Finished difference Result 59 states and 114 transitions. [2020-07-28 21:27:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-07-28 21:27:51,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,374 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 59 states. [2020-07-28 21:27:51,374 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 59 states. [2020-07-28 21:27:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,376 INFO L93 Difference]: Finished difference Result 59 states and 114 transitions. [2020-07-28 21:27:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-07-28 21:27:51,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,377 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,377 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:51,377 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-28 21:27:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-07-28 21:27:51,379 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-07-28 21:27:51,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:51,379 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-07-28 21:27:51,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:27:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-07-28 21:27:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:27:51,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:51,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:51,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:27:51,381 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:51,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:51,381 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-07-28 21:27:51,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:51,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192756700] [2020-07-28 21:27:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:51,448 INFO L280 TraceCheckUtils]: 0: Hoare triple {4757#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,449 INFO L280 TraceCheckUtils]: 1: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,450 INFO L280 TraceCheckUtils]: 2: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,451 INFO L280 TraceCheckUtils]: 3: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,452 INFO L280 TraceCheckUtils]: 4: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,452 INFO L280 TraceCheckUtils]: 5: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,453 INFO L280 TraceCheckUtils]: 6: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,454 INFO L280 TraceCheckUtils]: 7: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4759#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,455 INFO L280 TraceCheckUtils]: 8: Hoare triple {4759#(= 0 ~__unbuffered_cnt~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4760#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,455 INFO L280 TraceCheckUtils]: 9: Hoare triple {4760#(<= ~__unbuffered_cnt~0 1)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4760#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,456 INFO L280 TraceCheckUtils]: 10: Hoare triple {4760#(<= ~__unbuffered_cnt~0 1)} [160] L745-->L748: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {4760#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,457 INFO L280 TraceCheckUtils]: 11: Hoare triple {4760#(<= ~__unbuffered_cnt~0 1)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {4760#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,458 INFO L280 TraceCheckUtils]: 12: Hoare triple {4760#(<= ~__unbuffered_cnt~0 1)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4761#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:27:51,459 INFO L280 TraceCheckUtils]: 13: Hoare triple {4761#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4758#false} is VALID [2020-07-28 21:27:51,460 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 21:27:51,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192756700] [2020-07-28 21:27:51,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:51,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:27:51,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419432511] [2020-07-28 21:27:51,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:27:51,462 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:51,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:27:51,479 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 21:27:51,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:27:51,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:51,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:27:51,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:27:51,480 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 5 states. [2020-07-28 21:27:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,613 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-07-28 21:27:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:27:51,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 21:27:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:27:51,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-28 21:27:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:27:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-28 21:27:51,615 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 46 transitions. [2020-07-28 21:27:51,669 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:51,670 INFO L225 Difference]: With dead ends: 60 [2020-07-28 21:27:51,671 INFO L226 Difference]: Without dead ends: 45 [2020-07-28 21:27:51,671 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 21:27:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-28 21:27:51,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-28 21:27:51,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:51,681 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 45 states. [2020-07-28 21:27:51,681 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 21:27:51,681 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 21:27:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,683 INFO L93 Difference]: Finished difference Result 45 states and 74 transitions. [2020-07-28 21:27:51,683 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-07-28 21:27:51,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,683 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 45 states. [2020-07-28 21:27:51,683 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 45 states. [2020-07-28 21:27:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,684 INFO L93 Difference]: Finished difference Result 45 states and 74 transitions. [2020-07-28 21:27:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-07-28 21:27:51,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:51,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:51,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 21:27:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-07-28 21:27:51,686 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-07-28 21:27:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:51,687 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-07-28 21:27:51,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:27:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-07-28 21:27:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:27:51,687 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:51,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:51,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:27:51,688 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:51,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:51,688 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-07-28 21:27:51,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:51,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780089459] [2020-07-28 21:27:51,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:51,761 INFO L280 TraceCheckUtils]: 0: Hoare triple {5006#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,761 INFO L280 TraceCheckUtils]: 1: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,762 INFO L280 TraceCheckUtils]: 2: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,763 INFO L280 TraceCheckUtils]: 3: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,763 INFO L280 TraceCheckUtils]: 4: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,764 INFO L280 TraceCheckUtils]: 5: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,764 INFO L280 TraceCheckUtils]: 6: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,768 INFO L280 TraceCheckUtils]: 7: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5008#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:27:51,770 INFO L280 TraceCheckUtils]: 8: Hoare triple {5008#(= 0 ~__unbuffered_cnt~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5009#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,772 INFO L280 TraceCheckUtils]: 9: Hoare triple {5009#(<= ~__unbuffered_cnt~0 1)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5009#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,773 INFO L280 TraceCheckUtils]: 10: Hoare triple {5009#(<= ~__unbuffered_cnt~0 1)} [160] L745-->L748: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {5009#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,774 INFO L280 TraceCheckUtils]: 11: Hoare triple {5009#(<= ~__unbuffered_cnt~0 1)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {5009#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:27:51,774 INFO L280 TraceCheckUtils]: 12: Hoare triple {5009#(<= ~__unbuffered_cnt~0 1)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5010#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:27:51,776 INFO L280 TraceCheckUtils]: 13: Hoare triple {5010#(<= ~__unbuffered_cnt~0 2)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5011#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:27:51,777 INFO L280 TraceCheckUtils]: 14: Hoare triple {5011#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5007#false} is VALID [2020-07-28 21:27:51,778 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 21:27:51,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780089459] [2020-07-28 21:27:51,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:51,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:27:51,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666714647] [2020-07-28 21:27:51,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:27:51,779 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:51,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:27:51,797 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 21:27:51,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:27:51,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:51,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:27:51,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:27:51,798 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 6 states. [2020-07-28 21:27:51,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,934 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-07-28 21:27:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:27:51,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:27:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:27:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 39 transitions. [2020-07-28 21:27:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:27:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 39 transitions. [2020-07-28 21:27:51,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 39 transitions. [2020-07-28 21:27:51,987 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 21:27:51,988 INFO L225 Difference]: With dead ends: 42 [2020-07-28 21:27:51,988 INFO L226 Difference]: Without dead ends: 36 [2020-07-28 21:27:51,989 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 21:27:51,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-28 21:27:51,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:27:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-28 21:27:51,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:51,997 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-28 21:27:51,997 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:27:51,997 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:27:51,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:51,998 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:27:51,998 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:27:51,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:51,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:51,999 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:27:51,999 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:27:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:52,000 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:27:52,000 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:27:52,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:52,000 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:52,000 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:52,000 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-28 21:27:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-07-28 21:27:52,001 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-07-28 21:27:52,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:52,002 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-07-28 21:27:52,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:27:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:27:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:27:52,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:27:52,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:27:52,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:27:52,003 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:27:52,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:27:52,003 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-07-28 21:27:52,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:27:52,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822366538] [2020-07-28 21:27:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:27:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:27:52,045 INFO L280 TraceCheckUtils]: 0: Hoare triple {5202#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1843~0.base_24|) (= 0 |v_ULTIMATE.start_main_~#t1843~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24| 1) |v_#valid_56|) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1843~0.base_24|) |v_ULTIMATE.start_main_~#t1843~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= (store |v_#length_20| |v_ULTIMATE.start_main_~#t1843~0.base_24| 4) |v_#length_19|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1843~0.base_24|)) (= 0 v_~__unbuffered_p0_EAX~0_44) (= 0 |v_#NULL.offset_6|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20) (= v_~__unbuffered_p0_EBX~0_47 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_47, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1843~0.base=|v_ULTIMATE.start_main_~#t1843~0.base_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_14|, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_19|, ULTIMATE.start_main_~#t1843~0.offset=|v_ULTIMATE.start_main_~#t1843~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_22|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_16|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1843~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1845~0.offset, #NULL.base, ULTIMATE.start_main_~#t1845~0.base, ULTIMATE.start_main_~#t1843~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {5202#true} is VALID [2020-07-28 21:27:52,045 INFO L280 TraceCheckUtils]: 1: Hoare triple {5202#true} [165] L768-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5202#true} is VALID [2020-07-28 21:27:52,045 INFO L280 TraceCheckUtils]: 2: Hoare triple {5202#true} [202] L768-1-->L770: Formula: (and (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t1844~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1844~0.base_9| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1844~0.base_9|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1844~0.base_9|) |v_ULTIMATE.start_main_~#t1844~0.offset_8| 1))) (= |v_ULTIMATE.start_main_~#t1844~0.offset_8| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1844~0.base_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t1844~0.base=|v_ULTIMATE.start_main_~#t1844~0.base_9|, ULTIMATE.start_main_~#t1844~0.offset=|v_ULTIMATE.start_main_~#t1844~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1844~0.base, ULTIMATE.start_main_~#t1844~0.offset] {5202#true} is VALID [2020-07-28 21:27:52,046 INFO L280 TraceCheckUtils]: 3: Hoare triple {5202#true} [167] L770-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {5202#true} is VALID [2020-07-28 21:27:52,046 INFO L280 TraceCheckUtils]: 4: Hoare triple {5202#true} [195] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_9) (= |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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,047 INFO L280 TraceCheckUtils]: 5: Hoare triple {5204#(= 1 ~x~0)} [196] L770-1-->L772: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1845~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1845~0.base_8| 4)) (= |v_ULTIMATE.start_main_~#t1845~0.offset_8| 0) (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1845~0.base_8|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1845~0.base_8|) |v_ULTIMATE.start_main_~#t1845~0.offset_8| 2))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1845~0.base_8|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t1845~0.base=|v_ULTIMATE.start_main_~#t1845~0.base_8|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1845~0.offset=|v_ULTIMATE.start_main_~#t1845~0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1845~0.base, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1845~0.offset] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,048 INFO L280 TraceCheckUtils]: 6: Hoare triple {5204#(= 1 ~x~0)} [169] L772-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,048 INFO L280 TraceCheckUtils]: 7: Hoare triple {5204#(= 1 ~x~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,049 INFO L280 TraceCheckUtils]: 8: Hoare triple {5204#(= 1 ~x~0)} [208] L733-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,050 INFO L280 TraceCheckUtils]: 9: Hoare triple {5204#(= 1 ~x~0)} [194] P2ENTRY-->L745: 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_28 v_~__unbuffered_p2_EAX~0_20)) 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_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,050 INFO L280 TraceCheckUtils]: 10: Hoare triple {5204#(= 1 ~x~0)} [160] L745-->L748: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,051 INFO L280 TraceCheckUtils]: 11: Hoare triple {5204#(= 1 ~x~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_15 v_~__unbuffered_p0_EAX~0_12) (= 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_15} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_15, 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] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,051 INFO L280 TraceCheckUtils]: 12: Hoare triple {5204#(= 1 ~x~0)} [211] L748-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5204#(= 1 ~x~0)} is VALID [2020-07-28 21:27:52,055 INFO L280 TraceCheckUtils]: 13: Hoare triple {5204#(= 1 ~x~0)} [148] L715-->L718: Formula: (= v_~__unbuffered_p0_EBX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0] {5205#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:27:52,060 INFO L280 TraceCheckUtils]: 14: Hoare triple {5205#(= 1 ~__unbuffered_p0_EBX~0)} [199] L718-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5205#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:27:52,063 INFO L280 TraceCheckUtils]: 15: Hoare triple {5205#(= 1 ~__unbuffered_p0_EBX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5205#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:27:52,064 INFO L280 TraceCheckUtils]: 16: Hoare triple {5205#(= 1 ~__unbuffered_p0_EBX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 2 v_~__unbuffered_p0_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= v_~__unbuffered_p0_EBX~0_46 0) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_46, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5203#false} is VALID [2020-07-28 21:27:52,064 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 21:27:52,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822366538] [2020-07-28 21:27:52,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:27:52,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:27:52,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550729544] [2020-07-28 21:27:52,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:27:52,066 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:27:52,066 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:27:52,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:52,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:27:52,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:27:52,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:27:52,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:27:52,086 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-07-28 21:27:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:52,126 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-07-28 21:27:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:27:52,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:27:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:27:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-28 21:27:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:27:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-28 21:27:52,127 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 21 transitions. [2020-07-28 21:27:52,154 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:27:52,154 INFO L225 Difference]: With dead ends: 35 [2020-07-28 21:27:52,154 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:27:52,155 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 21:27:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:27:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:27:52,155 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:27:52,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:27:52,156 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:27:52,156 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:27:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:52,156 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:27:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:27:52,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:52,157 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:52,157 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:27:52,157 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:27:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:27:52,157 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:27:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:27:52,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:52,158 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:27:52,158 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:27:52,158 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:27:52,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:27:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:27:52,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:27:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:27:52,158 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:27:52,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:27:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:27:52,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:27:52,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:27:52,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:27:52 BasicIcfg [2020-07-28 21:27:52,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:27:52,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:27:52,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:27:52,163 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:27:52,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:27:46" (3/4) ... [2020-07-28 21:27:52,167 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:27:52,173 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:27:52,173 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:27:52,173 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:27:52,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:27:52,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:27:52,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:27:52,227 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:27:52,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:27:52,230 INFO L168 Benchmark]: Toolchain (without parser) took 7217.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 303.0 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 167.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:27:52,230 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:27:52,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:27:52,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.06 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 21:27:52,232 INFO L168 Benchmark]: Boogie Preprocessor took 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:27:52,232 INFO L168 Benchmark]: RCFGBuilder took 534.65 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:27:52,233 INFO L168 Benchmark]: TraceAbstraction took 5726.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 153.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -15.2 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:27:52,233 INFO L168 Benchmark]: Witness Printer took 64.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:27:52,236 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 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 797.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.06 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 31.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.65 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5726.53 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 153.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -15.2 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. * Witness Printer took 64.46 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 669 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 159 SDtfs, 136 SDslu, 180 SDs, 0 SdLazy, 116 SolverSat, 22 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...