./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0db13c7f66fc4fa202e2e2284553897dfbb4a475 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:35:41,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:35:41,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:35:41,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:35:41,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:35:41,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:35:41,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:35:41,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:35:41,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:35:41,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:35:41,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:35:41,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:35:41,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:35:41,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:35:41,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:35:41,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:35:41,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:35:41,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:35:41,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:35:41,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:35:41,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:35:41,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:35:41,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:35:41,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:35:41,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:35:41,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:35:41,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:35:41,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:35:41,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:35:41,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:35:41,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:35:41,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:35:41,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:35:41,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:35:41,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:35:41,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:35:41,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:35:41,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:35:41,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:35:41,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:35:41,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:35:41,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:35:41,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:35:41,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:35:41,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:35:41,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:35:41,788 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:35:41,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:35:41,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:35:41,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:35:41,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:35:41,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:35:41,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:35:41,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:35:41,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:35:41,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:35:41,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:35:41,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:35:41,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:35:41,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:35:41,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:35:41,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:35:41,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:35:41,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:35:41,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:35:41,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:35:41,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:35:41,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:35:41,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:35:41,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:35:41,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:35:41,795 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 -> 0db13c7f66fc4fa202e2e2284553897dfbb4a475 [2020-07-28 21:35:42,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:35:42,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:35:42,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:35:42,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:35:42,146 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:35:42,147 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i [2020-07-28 21:35:42,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4198a34/be3c94608bac43318dabb9105303f481/FLAG2ecf02090 [2020-07-28 21:35:42,815 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:35:42,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_tso.opt.i [2020-07-28 21:35:42,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4198a34/be3c94608bac43318dabb9105303f481/FLAG2ecf02090 [2020-07-28 21:35:43,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4198a34/be3c94608bac43318dabb9105303f481 [2020-07-28 21:35:43,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:35:43,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:35:43,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:43,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:35:43,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:35:43,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a4e1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43, skipping insertion in model container [2020-07-28 21:35:43,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:35:43,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:35:43,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:43,590 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:35:43,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:43,802 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:35:43,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43 WrapperNode [2020-07-28 21:35:43,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:43,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:43,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:35:43,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:35:43,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:43,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:35:43,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:35:43,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:35:43,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (1/1) ... [2020-07-28 21:35:43,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:35:43,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:35:43,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:35:43,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:35:43,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (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 21:35:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:35:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:35:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:35:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:35:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:35:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:35:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:35:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:35:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:35:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:35:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:35:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:35:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:35:43,982 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 21:35:44,415 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:35:44,416 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:35:44,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:44 BoogieIcfgContainer [2020-07-28 21:35:44,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:35:44,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:35:44,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:35:44,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:35:44,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:35:43" (1/3) ... [2020-07-28 21:35:44,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6801f63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:44, skipping insertion in model container [2020-07-28 21:35:44,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:43" (2/3) ... [2020-07-28 21:35:44,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6801f63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:44, skipping insertion in model container [2020-07-28 21:35:44,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:44" (3/3) ... [2020-07-28 21:35:44,434 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2020-07-28 21:35:44,444 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:35:44,445 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:35:44,455 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:35:44,456 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:35:44,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,513 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,514 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:44,553 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:35:44,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:35:44,576 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:35:44,576 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:35:44,576 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:35:44,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:35:44,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:35:44,577 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:35:44,577 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:35:44,596 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:44,598 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:44,644 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:44,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:44,654 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:44,658 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:44,688 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:44,688 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:44,689 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:44,691 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:35:44,693 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:35:47,237 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-07-28 21:35:47,238 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:35:47,243 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:35:47,285 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:35:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:35:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:35:47,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:47,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:47,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:47,312 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-07-28 21:35:47,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:47,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671186429] [2020-07-28 21:35:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:47,540 INFO L280 TraceCheckUtils]: 0: Hoare triple {676#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,541 INFO L280 TraceCheckUtils]: 1: Hoare triple {678#(= 0 ~x~0)} [163] 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] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,541 INFO L280 TraceCheckUtils]: 2: Hoare triple {678#(= 0 ~x~0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {678#(= 0 ~x~0)} [165] 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] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,544 INFO L280 TraceCheckUtils]: 4: Hoare triple {678#(= 0 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,546 INFO L280 TraceCheckUtils]: 5: Hoare triple {678#(= 0 ~x~0)} [167] 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] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,548 INFO L280 TraceCheckUtils]: 6: Hoare triple {678#(= 0 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {678#(= 0 ~x~0)} is VALID [2020-07-28 21:35:47,550 INFO L280 TraceCheckUtils]: 7: Hoare triple {678#(= 0 ~x~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {677#false} is VALID [2020-07-28 21:35:47,553 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 21:35:47,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671186429] [2020-07-28 21:35:47,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:47,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:47,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388196801] [2020-07-28 21:35:47,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:47,563 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:47,567 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:47,588 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 21:35:47,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:47,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:47,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:47,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:47,602 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:35:47,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,749 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:35:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:47,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:47,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:35:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-07-28 21:35:47,753 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 31 transitions. [2020-07-28 21:35:47,794 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:47,821 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:35:47,821 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:35:47,823 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 21:35:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:35:47,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:35:47,929 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:47,930 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:47,930 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:47,931 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,951 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:47,951 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:47,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,954 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,954 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:47,954 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:47,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:47,973 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:47,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:47,976 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:47,976 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:47,976 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:35:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:35:47,994 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:35:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:47,994 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:35:47,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:35:47,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:47,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:47,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:35:47,996 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:47,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:47,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-07-28 21:35:47,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:47,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896594755] [2020-07-28 21:35:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,099 INFO L280 TraceCheckUtils]: 0: Hoare triple {1835#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {1835#true} is VALID [2020-07-28 21:35:48,100 INFO L280 TraceCheckUtils]: 1: Hoare triple {1835#true} [163] 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] {1835#true} is VALID [2020-07-28 21:35:48,100 INFO L280 TraceCheckUtils]: 2: Hoare triple {1835#true} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {1835#true} is VALID [2020-07-28 21:35:48,101 INFO L280 TraceCheckUtils]: 3: Hoare triple {1835#true} [165] 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] {1835#true} is VALID [2020-07-28 21:35:48,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {1835#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,103 INFO L280 TraceCheckUtils]: 5: Hoare triple {1837#(= 1 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,103 INFO L280 TraceCheckUtils]: 6: Hoare triple {1837#(= 1 ~x~0)} [167] 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] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,104 INFO L280 TraceCheckUtils]: 7: Hoare triple {1837#(= 1 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1837#(= 1 ~x~0)} is VALID [2020-07-28 21:35:48,105 INFO L280 TraceCheckUtils]: 8: Hoare triple {1837#(= 1 ~x~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1836#false} is VALID [2020-07-28 21:35:48,106 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 21:35:48,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896594755] [2020-07-28 21:35:48,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:48,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634241574] [2020-07-28 21:35:48,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:35:48,109 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,109 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:48,121 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 21:35:48,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:48,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:48,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:48,123 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-07-28 21:35:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,191 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:48,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:35:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:35:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:35:48,193 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:35:48,227 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,235 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:35:48,235 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:35:48,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:35:48,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:35:48,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,289 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:48,289 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:48,289 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:48,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,310 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:48,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,311 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,311 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:48,311 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:35:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,332 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:35:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:48,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,333 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,333 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,333 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:35:48,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:35:48,349 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-07-28 21:35:48,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,349 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:35:48,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:35:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:35:48,350 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:35:48,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,351 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-07-28 21:35:48,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185200335] [2020-07-28 21:35:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,428 INFO L280 TraceCheckUtils]: 0: Hoare triple {2850#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,429 INFO L280 TraceCheckUtils]: 1: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [163] 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] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,430 INFO L280 TraceCheckUtils]: 2: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,431 INFO L280 TraceCheckUtils]: 3: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [165] 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] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,431 INFO L280 TraceCheckUtils]: 4: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,432 INFO L280 TraceCheckUtils]: 5: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,433 INFO L280 TraceCheckUtils]: 6: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,433 INFO L280 TraceCheckUtils]: 7: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [167] 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] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,434 INFO L280 TraceCheckUtils]: 8: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2852#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:48,436 INFO L280 TraceCheckUtils]: 9: Hoare triple {2852#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2851#false} is VALID [2020-07-28 21:35:48,437 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 21:35:48,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185200335] [2020-07-28 21:35:48,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:48,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692262346] [2020-07-28 21:35:48,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:35:48,438 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:48,453 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:48,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:48,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:48,454 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:35:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,493 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:48,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:35:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:35:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:35:48,496 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:35:48,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:48,534 INFO L225 Difference]: With dead ends: 194 [2020-07-28 21:35:48,535 INFO L226 Difference]: Without dead ends: 194 [2020-07-28 21:35:48,535 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 21:35:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-07-28 21:35:48,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-07-28 21:35:48,606 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:48,606 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:48,606 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,617 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:48,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,618 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,618 INFO L74 IsIncluded]: Start isIncluded. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:48,618 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 194 states. [2020-07-28 21:35:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,629 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-07-28 21:35:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:48,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,630 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,630 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,631 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-07-28 21:35:48,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-07-28 21:35:48,642 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-07-28 21:35:48,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,642 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-07-28 21:35:48,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:48,643 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-07-28 21:35:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:35:48,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:35:48,644 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1558339042, now seen corresponding path program 1 times [2020-07-28 21:35:48,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310701594] [2020-07-28 21:35:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:48,716 INFO L280 TraceCheckUtils]: 0: Hoare triple {3825#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,717 INFO L280 TraceCheckUtils]: 1: Hoare triple {3827#(= 0 ~y~0)} [163] 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] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,718 INFO L280 TraceCheckUtils]: 2: Hoare triple {3827#(= 0 ~y~0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,719 INFO L280 TraceCheckUtils]: 3: Hoare triple {3827#(= 0 ~y~0)} [165] 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] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,719 INFO L280 TraceCheckUtils]: 4: Hoare triple {3827#(= 0 ~y~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,720 INFO L280 TraceCheckUtils]: 5: Hoare triple {3827#(= 0 ~y~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,721 INFO L280 TraceCheckUtils]: 6: Hoare triple {3827#(= 0 ~y~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,722 INFO L280 TraceCheckUtils]: 7: Hoare triple {3827#(= 0 ~y~0)} [167] 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] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,722 INFO L280 TraceCheckUtils]: 8: Hoare triple {3827#(= 0 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,723 INFO L280 TraceCheckUtils]: 9: Hoare triple {3827#(= 0 ~y~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3827#(= 0 ~y~0)} is VALID [2020-07-28 21:35:48,724 INFO L280 TraceCheckUtils]: 10: Hoare triple {3827#(= 0 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3826#false} is VALID [2020-07-28 21:35:48,725 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 21:35:48,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310701594] [2020-07-28 21:35:48,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:48,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:48,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237960607] [2020-07-28 21:35:48,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:48,726 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:48,726 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:48,742 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 21:35:48,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:48,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:48,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:48,743 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 3 states. [2020-07-28 21:35:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,778 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:48,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:48,780 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:35:48,813 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 21:35:48,818 INFO L225 Difference]: With dead ends: 192 [2020-07-28 21:35:48,818 INFO L226 Difference]: Without dead ends: 192 [2020-07-28 21:35:48,819 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 21:35:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-28 21:35:48,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-28 21:35:48,872 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:48,872 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:48,872 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:48,873 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,882 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:48,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,884 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:48,884 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-28 21:35:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:48,893 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-07-28 21:35:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:48,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:48,894 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:48,894 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:48,894 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-28 21:35:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-07-28 21:35:48,902 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-07-28 21:35:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:48,902 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-07-28 21:35:48,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-07-28 21:35:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:35:48,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:48,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:48,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:35:48,904 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:48,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-07-28 21:35:48,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:48,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561590465] [2020-07-28 21:35:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:49,001 INFO L280 TraceCheckUtils]: 0: Hoare triple {4790#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,002 INFO L280 TraceCheckUtils]: 1: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [163] 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] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,003 INFO L280 TraceCheckUtils]: 2: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,005 INFO L280 TraceCheckUtils]: 3: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [165] 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] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,007 INFO L280 TraceCheckUtils]: 4: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,009 INFO L280 TraceCheckUtils]: 5: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,011 INFO L280 TraceCheckUtils]: 6: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,012 INFO L280 TraceCheckUtils]: 7: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,013 INFO L280 TraceCheckUtils]: 8: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [167] 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] {4792#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,015 INFO L280 TraceCheckUtils]: 9: Hoare triple {4792#(<= ~__unbuffered_cnt~0 0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:49,016 INFO L280 TraceCheckUtils]: 10: Hoare triple {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} 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|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:49,017 INFO L280 TraceCheckUtils]: 11: Hoare triple {4793#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4791#false} is VALID [2020-07-28 21:35:49,018 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 21:35:49,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561590465] [2020-07-28 21:35:49,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:49,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:49,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018095773] [2020-07-28 21:35:49,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:49,020 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:49,020 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:49,037 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 21:35:49,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:49,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:49,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:49,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:49,039 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-07-28 21:35:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,155 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-07-28 21:35:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:49,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:49,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:49,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:35:49,224 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:49,246 INFO L225 Difference]: With dead ends: 224 [2020-07-28 21:35:49,246 INFO L226 Difference]: Without dead ends: 160 [2020-07-28 21:35:49,247 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 21:35:49,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-28 21:35:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-28 21:35:49,279 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:49,280 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:49,280 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:49,280 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,285 INFO L93 Difference]: Finished difference Result 160 states and 383 transitions. [2020-07-28 21:35:49,285 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:49,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,285 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,286 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:49,286 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:35:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,291 INFO L93 Difference]: Finished difference Result 160 states and 383 transitions. [2020-07-28 21:35:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:49,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,291 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:49,291 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-28 21:35:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-07-28 21:35:49,296 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-07-28 21:35:49,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:49,296 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-07-28 21:35:49,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-07-28 21:35:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:35:49,297 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:49,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:49,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:35:49,298 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:49,298 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-07-28 21:35:49,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:49,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765730603] [2020-07-28 21:35:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:49,380 INFO L280 TraceCheckUtils]: 0: Hoare triple {5662#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,381 INFO L280 TraceCheckUtils]: 1: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [163] 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] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,385 INFO L280 TraceCheckUtils]: 2: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,386 INFO L280 TraceCheckUtils]: 3: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [165] 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] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,388 INFO L280 TraceCheckUtils]: 4: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,389 INFO L280 TraceCheckUtils]: 5: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5664#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:49,390 INFO L280 TraceCheckUtils]: 6: Hoare triple {5664#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:49,391 INFO L280 TraceCheckUtils]: 7: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:49,392 INFO L280 TraceCheckUtils]: 8: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:49,392 INFO L280 TraceCheckUtils]: 9: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [167] 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] {5665#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:49,394 INFO L280 TraceCheckUtils]: 10: Hoare triple {5665#(<= ~__unbuffered_cnt~0 1)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:49,396 INFO L280 TraceCheckUtils]: 11: Hoare triple {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:49,398 INFO L280 TraceCheckUtils]: 12: Hoare triple {5666#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5663#false} is VALID [2020-07-28 21:35:49,399 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 21:35:49,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765730603] [2020-07-28 21:35:49,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:49,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:49,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282356357] [2020-07-28 21:35:49,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:49,400 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:49,400 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:35:49,418 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 21:35:49,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:35:49,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:35:49,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:35:49,419 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-07-28 21:35:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,597 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-07-28 21:35:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:35:49,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:35:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:49,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-28 21:35:49,600 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 62 transitions. [2020-07-28 21:35:49,677 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:49,680 INFO L225 Difference]: With dead ends: 160 [2020-07-28 21:35:49,681 INFO L226 Difference]: Without dead ends: 123 [2020-07-28 21:35:49,681 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 21:35:49,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-28 21:35:49,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,694 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,695 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,696 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,696 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,696 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,696 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-28 21:35:49,727 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:49,728 INFO L82 GeneralOperation]: Start isEquivalent. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:49,728 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:49,728 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,732 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:35:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:49,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,732 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,733 INFO L74 IsIncluded]: Start isIncluded. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:49,733 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 123 states. [2020-07-28 21:35:49,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,737 INFO L93 Difference]: Finished difference Result 123 states and 272 transitions. [2020-07-28 21:35:49,737 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:49,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,737 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,738 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:49,738 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-28 21:35:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-07-28 21:35:49,741 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-07-28 21:35:49,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:49,742 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-07-28 21:35:49,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:35:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-07-28 21:35:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:35:49,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:49,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:49,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:35:49,743 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-07-28 21:35:49,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:49,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868017797] [2020-07-28 21:35:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:49,783 INFO L280 TraceCheckUtils]: 0: Hoare triple {6323#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {6323#true} is VALID [2020-07-28 21:35:49,783 INFO L280 TraceCheckUtils]: 1: Hoare triple {6323#true} [163] 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] {6323#true} is VALID [2020-07-28 21:35:49,784 INFO L280 TraceCheckUtils]: 2: Hoare triple {6323#true} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {6323#true} is VALID [2020-07-28 21:35:49,784 INFO L280 TraceCheckUtils]: 3: Hoare triple {6323#true} [165] 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] {6323#true} is VALID [2020-07-28 21:35:49,784 INFO L280 TraceCheckUtils]: 4: Hoare triple {6323#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6323#true} is VALID [2020-07-28 21:35:49,785 INFO L280 TraceCheckUtils]: 5: Hoare triple {6323#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6323#true} is VALID [2020-07-28 21:35:49,785 INFO L280 TraceCheckUtils]: 6: Hoare triple {6323#true} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6323#true} is VALID [2020-07-28 21:35:49,785 INFO L280 TraceCheckUtils]: 7: Hoare triple {6323#true} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {6323#true} is VALID [2020-07-28 21:35:49,786 INFO L280 TraceCheckUtils]: 8: Hoare triple {6323#true} [167] 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] {6323#true} is VALID [2020-07-28 21:35:49,786 INFO L280 TraceCheckUtils]: 9: Hoare triple {6323#true} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} 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|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6323#true} is VALID [2020-07-28 21:35:49,787 INFO L280 TraceCheckUtils]: 10: Hoare triple {6323#true} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:49,788 INFO L280 TraceCheckUtils]: 11: Hoare triple {6325#(= 1 ~y~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:49,789 INFO L280 TraceCheckUtils]: 12: Hoare triple {6325#(= 1 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6325#(= 1 ~y~0)} is VALID [2020-07-28 21:35:49,790 INFO L280 TraceCheckUtils]: 13: Hoare triple {6325#(= 1 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6324#false} is VALID [2020-07-28 21:35:49,790 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 21:35:49,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868017797] [2020-07-28 21:35:49,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:49,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:49,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813681457] [2020-07-28 21:35:49,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:49,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:49,792 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:49,813 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 21:35:49,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:49,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:49,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:49,814 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-07-28 21:35:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,864 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-07-28 21:35:49,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:49,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 21:35:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 21:35:49,867 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 26 transitions. [2020-07-28 21:35:49,898 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:49,900 INFO L225 Difference]: With dead ends: 155 [2020-07-28 21:35:49,901 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:35:49,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:35:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-07-28 21:35:49,930 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:49,930 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:49,930 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:49,931 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 122 states. [2020-07-28 21:35:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,935 INFO L93 Difference]: Finished difference Result 124 states and 258 transitions. [2020-07-28 21:35:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 258 transitions. [2020-07-28 21:35:49,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,935 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,936 INFO L74 IsIncluded]: Start isIncluded. First operand 122 states. Second operand 124 states. [2020-07-28 21:35:49,936 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 124 states. [2020-07-28 21:35:49,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:49,939 INFO L93 Difference]: Finished difference Result 124 states and 258 transitions. [2020-07-28 21:35:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 258 transitions. [2020-07-28 21:35:49,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:49,940 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:49,940 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:49,940 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-28 21:35:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-07-28 21:35:49,944 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-07-28 21:35:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:49,944 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-07-28 21:35:49,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-07-28 21:35:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:49,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:49,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:49,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:35:49,946 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-07-28 21:35:49,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:49,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871310000] [2020-07-28 21:35:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:50,015 INFO L280 TraceCheckUtils]: 0: Hoare triple {6975#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {6975#true} is VALID [2020-07-28 21:35:50,015 INFO L280 TraceCheckUtils]: 1: Hoare triple {6975#true} [163] 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] {6975#true} is VALID [2020-07-28 21:35:50,016 INFO L280 TraceCheckUtils]: 2: Hoare triple {6975#true} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {6975#true} is VALID [2020-07-28 21:35:50,016 INFO L280 TraceCheckUtils]: 3: Hoare triple {6975#true} [165] 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] {6975#true} is VALID [2020-07-28 21:35:50,016 INFO L280 TraceCheckUtils]: 4: Hoare triple {6975#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6975#true} is VALID [2020-07-28 21:35:50,021 INFO L280 TraceCheckUtils]: 5: Hoare triple {6975#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:50,022 INFO L280 TraceCheckUtils]: 6: Hoare triple {6977#(<= 2 ~x~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:50,023 INFO L280 TraceCheckUtils]: 7: Hoare triple {6977#(<= 2 ~x~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6977#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:50,024 INFO L280 TraceCheckUtils]: 8: Hoare triple {6977#(<= 2 ~x~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,024 INFO L280 TraceCheckUtils]: 9: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,025 INFO L280 TraceCheckUtils]: 10: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,026 INFO L280 TraceCheckUtils]: 11: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [167] 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] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,027 INFO L280 TraceCheckUtils]: 12: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,028 INFO L280 TraceCheckUtils]: 13: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6978#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:50,029 INFO L280 TraceCheckUtils]: 14: Hoare triple {6978#(<= 2 ~__unbuffered_p0_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6976#false} is VALID [2020-07-28 21:35:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:35:50,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871310000] [2020-07-28 21:35:50,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:50,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:50,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248116268] [2020-07-28 21:35:50,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:50,032 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:50,032 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:50,051 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 21:35:50,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:50,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:50,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:50,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:50,052 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-07-28 21:35:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,142 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-07-28 21:35:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:50,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:50,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:35:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:50,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:35:50,144 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2020-07-28 21:35:50,190 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:50,191 INFO L225 Difference]: With dead ends: 154 [2020-07-28 21:35:50,192 INFO L226 Difference]: Without dead ends: 116 [2020-07-28 21:35:50,192 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 21:35:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-07-28 21:35:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-07-28 21:35:50,224 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:50,224 INFO L82 GeneralOperation]: Start isEquivalent. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:50,224 INFO L74 IsIncluded]: Start isIncluded. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:50,225 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 114 states. [2020-07-28 21:35:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,227 INFO L93 Difference]: Finished difference Result 116 states and 223 transitions. [2020-07-28 21:35:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 223 transitions. [2020-07-28 21:35:50,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,228 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 116 states. [2020-07-28 21:35:50,228 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 116 states. [2020-07-28 21:35:50,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,231 INFO L93 Difference]: Finished difference Result 116 states and 223 transitions. [2020-07-28 21:35:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 223 transitions. [2020-07-28 21:35:50,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,232 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,232 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:50,232 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-28 21:35:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-07-28 21:35:50,234 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-07-28 21:35:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:50,235 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-07-28 21:35:50,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-07-28 21:35:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:50,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:50,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:50,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:35:50,236 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:50,237 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-07-28 21:35:50,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:50,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873853875] [2020-07-28 21:35:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:50,402 INFO L280 TraceCheckUtils]: 0: Hoare triple {7597#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,403 INFO L280 TraceCheckUtils]: 1: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [163] 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] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,404 INFO L280 TraceCheckUtils]: 2: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,405 INFO L280 TraceCheckUtils]: 3: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [165] 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] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,406 INFO L280 TraceCheckUtils]: 4: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,407 INFO L280 TraceCheckUtils]: 5: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {7599#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:50,409 INFO L280 TraceCheckUtils]: 6: Hoare triple {7599#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:50,410 INFO L280 TraceCheckUtils]: 7: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:50,411 INFO L280 TraceCheckUtils]: 8: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [167] 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] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:50,411 INFO L280 TraceCheckUtils]: 9: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} 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|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:50,412 INFO L280 TraceCheckUtils]: 10: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7600#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:50,414 INFO L280 TraceCheckUtils]: 11: Hoare triple {7600#(<= ~__unbuffered_cnt~0 1)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7601#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:35:50,416 INFO L280 TraceCheckUtils]: 12: Hoare triple {7601#(<= ~__unbuffered_cnt~0 2)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:50,417 INFO L280 TraceCheckUtils]: 13: Hoare triple {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:50,419 INFO L280 TraceCheckUtils]: 14: Hoare triple {7602#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7598#false} is VALID [2020-07-28 21:35:50,420 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 21:35:50,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873853875] [2020-07-28 21:35:50,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:50,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:35:50,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636161488] [2020-07-28 21:35:50,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:50,422 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:50,422 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:35:50,448 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 21:35:50,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:35:50,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:50,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:35:50,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:35:50,450 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-07-28 21:35:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,649 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-07-28 21:35:50,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:35:50,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:50,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:35:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:50,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:35:50,651 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 49 transitions. [2020-07-28 21:35:50,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:50,712 INFO L225 Difference]: With dead ends: 110 [2020-07-28 21:35:50,712 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 21:35:50,713 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 21:35:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 21:35:50,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 21:35:50,721 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:50,721 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:50,722 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:50,722 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:50,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,723 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:35:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:50,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,724 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,724 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:50,724 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:35:50,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,725 INFO L93 Difference]: Finished difference Result 38 states and 62 transitions. [2020-07-28 21:35:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:50,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,726 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,726 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:50,726 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 21:35:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-07-28 21:35:50,727 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-07-28 21:35:50,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:50,727 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-07-28 21:35:50,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:35:50,727 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-07-28 21:35:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:35:50,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:50,728 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 21:35:50,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:35:50,728 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:50,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:50,728 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-07-28 21:35:50,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:50,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921177684] [2020-07-28 21:35:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:50,790 INFO L280 TraceCheckUtils]: 0: Hoare triple {7869#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {7869#true} is VALID [2020-07-28 21:35:50,790 INFO L280 TraceCheckUtils]: 1: Hoare triple {7869#true} [163] 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] {7869#true} is VALID [2020-07-28 21:35:50,791 INFO L280 TraceCheckUtils]: 2: Hoare triple {7869#true} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {7869#true} is VALID [2020-07-28 21:35:50,791 INFO L280 TraceCheckUtils]: 3: Hoare triple {7869#true} [165] 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] {7869#true} is VALID [2020-07-28 21:35:50,792 INFO L280 TraceCheckUtils]: 4: Hoare triple {7869#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:50,793 INFO L280 TraceCheckUtils]: 5: Hoare triple {7871#(= 1 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:50,794 INFO L280 TraceCheckUtils]: 6: Hoare triple {7871#(= 1 ~x~0)} [167] 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] {7871#(= 1 ~x~0)} is VALID [2020-07-28 21:35:50,795 INFO L280 TraceCheckUtils]: 7: Hoare triple {7871#(= 1 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} 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|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,795 INFO L280 TraceCheckUtils]: 8: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,796 INFO L280 TraceCheckUtils]: 9: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,796 INFO L280 TraceCheckUtils]: 10: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,797 INFO L280 TraceCheckUtils]: 11: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,798 INFO L280 TraceCheckUtils]: 12: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,809 INFO L280 TraceCheckUtils]: 13: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,810 INFO L280 TraceCheckUtils]: 14: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,811 INFO L280 TraceCheckUtils]: 15: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7872#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:50,812 INFO L280 TraceCheckUtils]: 16: Hoare triple {7872#(= 1 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7870#false} is VALID [2020-07-28 21:35:50,813 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 21:35:50,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921177684] [2020-07-28 21:35:50,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:50,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:50,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919973189] [2020-07-28 21:35:50,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:50,814 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:50,814 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:50,834 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 21:35:50,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:50,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:50,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:50,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:50,835 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-07-28 21:35:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,908 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-07-28 21:35:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:50,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:50,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:35:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:35:50,910 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 36 transitions. [2020-07-28 21:35:50,949 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 21:35:50,949 INFO L225 Difference]: With dead ends: 56 [2020-07-28 21:35:50,950 INFO L226 Difference]: Without dead ends: 35 [2020-07-28 21:35:50,950 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 21:35:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-28 21:35:50,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:50,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-28 21:35:50,957 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:50,958 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:50,958 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:50,958 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:50,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,959 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:35:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:50,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,959 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,960 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:50,960 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-28 21:35:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:50,961 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2020-07-28 21:35:50,961 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:50,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:50,961 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:50,961 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:50,961 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-28 21:35:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-07-28 21:35:50,962 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-07-28 21:35:50,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:50,963 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-07-28 21:35:50,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-07-28 21:35:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:35:50,963 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:50,963 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 21:35:50,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:35:50,964 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-07-28 21:35:50,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:50,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33803511] [2020-07-28 21:35:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:51,020 INFO L280 TraceCheckUtils]: 0: Hoare triple {8073#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25|)) (= 0 v_~main$tmp_guard1~0_52) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2142~0.base_25|) |v_ULTIMATE.start_main_~#t2142~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= (store .cse0 |v_ULTIMATE.start_main_~#t2142~0.base_25| 1) |v_#valid_53|) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= 0 |v_ULTIMATE.start_main_~#t2142~0.offset_20|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2142~0.base_25|) (= v_~__unbuffered_cnt~0_164 0) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2142~0.base_25| 4)) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_16|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_20|, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2142~0.offset=|v_ULTIMATE.start_main_~#t2142~0.offset_20|, ULTIMATE.start_main_~#t2142~0.base=|v_ULTIMATE.start_main_~#t2142~0.base_25|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_18|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base, #NULL.base, ULTIMATE.start_main_~#t2142~0.offset, ULTIMATE.start_main_~#t2142~0.base, ~__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_~#t2143~0.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,022 INFO L280 TraceCheckUtils]: 1: Hoare triple {8075#(= 0 ~x~0)} [163] 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] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,022 INFO L280 TraceCheckUtils]: 2: Hoare triple {8075#(= 0 ~x~0)} [197] L768-1-->L770: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2143~0.base_10| 4)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10| 1) |v_#valid_29|) (= 0 |v_ULTIMATE.start_main_~#t2143~0.offset_9|) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2143~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2143~0.base_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2143~0.base_10|) |v_ULTIMATE.start_main_~#t2143~0.offset_9| 1)) |v_#memory_int_11|) (not (= |v_ULTIMATE.start_main_~#t2143~0.base_10| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_~#t2143~0.base=|v_ULTIMATE.start_main_~#t2143~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2143~0.offset=|v_ULTIMATE.start_main_~#t2143~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2143~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2143~0.offset] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,024 INFO L280 TraceCheckUtils]: 3: Hoare triple {8075#(= 0 ~x~0)} [165] 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] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,027 INFO L280 TraceCheckUtils]: 4: Hoare triple {8075#(= 0 ~x~0)} [207] L770-1-->L772: Formula: (and (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2144~0.base_13|) |v_ULTIMATE.start_main_~#t2144~0.offset_11| 2)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13| 1)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2144~0.base_13|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2144~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2144~0.base_13| 4) |v_#length_15|) (= 0 |v_ULTIMATE.start_main_~#t2144~0.offset_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2144~0.offset=|v_ULTIMATE.start_main_~#t2144~0.offset_11|, ULTIMATE.start_main_~#t2144~0.base=|v_ULTIMATE.start_main_~#t2144~0.base_13|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2144~0.offset, ULTIMATE.start_main_~#t2144~0.base] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,029 INFO L280 TraceCheckUtils]: 5: Hoare triple {8075#(= 0 ~x~0)} [167] 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] {8075#(= 0 ~x~0)} is VALID [2020-07-28 21:35:51,030 INFO L280 TraceCheckUtils]: 6: Hoare triple {8075#(= 0 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} 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|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,031 INFO L280 TraceCheckUtils]: 7: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |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_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,032 INFO L280 TraceCheckUtils]: 8: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,032 INFO L280 TraceCheckUtils]: 9: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,033 INFO L280 TraceCheckUtils]: 10: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,034 INFO L280 TraceCheckUtils]: 11: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,034 INFO L280 TraceCheckUtils]: 12: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,035 INFO L280 TraceCheckUtils]: 13: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,035 INFO L280 TraceCheckUtils]: 14: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {8076#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:51,037 INFO L280 TraceCheckUtils]: 16: Hoare triple {8076#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 2 v_~x~0_57) (= 0 v_~main$tmp_guard1~0_35) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {8074#false} is VALID [2020-07-28 21:35:51,038 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 21:35:51,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33803511] [2020-07-28 21:35:51,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:51,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:51,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765970734] [2020-07-28 21:35:51,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:51,039 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:51,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:51,061 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 21:35:51,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:51,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:51,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:51,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:51,063 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-07-28 21:35:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:51,108 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-07-28 21:35:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:51,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:35:51,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:51,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:35:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:35:51,110 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 22 transitions. [2020-07-28 21:35:51,140 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:51,140 INFO L225 Difference]: With dead ends: 34 [2020-07-28 21:35:51,141 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:35:51,141 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 21:35:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:35:51,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:35:51,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:51,142 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:51,142 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:51,142 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:51,143 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:51,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:51,143 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:51,144 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:51,144 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:51,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:51,144 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:51,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:51,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:51,145 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:51,145 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:51,145 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:35:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:35:51,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:35:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:51,146 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:35:51,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:51,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:51,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-28 21:35:51,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:35:51 BasicIcfg [2020-07-28 21:35:51,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:35:51,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:35:51,152 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:35:51,152 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:35:51,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:44" (3/4) ... [2020-07-28 21:35:51,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:35:51,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:35:51,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:35:51,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:35:51,176 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:35:51,176 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:35:51,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:35:51,252 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:35:51,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:35:51,255 INFO L168 Benchmark]: Toolchain (without parser) took 8166.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.6 MB). Free memory was 956.2 MB in the beginning and 965.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 305.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,257 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 21:35:51,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.03 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 21:35:51,258 INFO L168 Benchmark]: Boogie Preprocessor took 28.31 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,262 INFO L168 Benchmark]: RCFGBuilder took 512.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,262 INFO L168 Benchmark]: TraceAbstraction took 6729.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 975.3 MB in the end (delta: 70.5 MB). Peak memory consumption was 260.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,263 INFO L168 Benchmark]: Witness Printer took 100.18 ms. Allocated memory is still 1.3 GB. Free memory was 975.3 MB in the beginning and 965.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:51,266 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 711.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.03 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 28.31 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 512.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6729.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 975.3 MB in the end (delta: 70.5 MB). Peak memory consumption was 260.8 MB. Max. memory is 11.5 GB. * Witness Printer took 100.18 ms. Allocated memory is still 1.3 GB. Free memory was 975.3 MB in the beginning and 965.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 215 SDtfs, 143 SDslu, 229 SDs, 0 SdLazy, 127 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4748 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...