./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe020_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/safe020_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 4f5503e48f02726d819817f1067a36be8433e8bc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:38:03,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:38:03,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:38:04,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:38:04,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:38:04,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:38:04,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:38:04,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:38:04,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:38:04,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:38:04,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:38:04,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:38:04,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:38:04,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:38:04,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:38:04,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:38:04,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:38:04,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:38:04,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:38:04,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:38:04,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:38:04,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:38:04,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:38:04,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:38:04,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:38:04,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:38:04,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:38:04,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:38:04,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:38:04,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:38:04,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:38:04,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:38:04,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:38:04,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:38:04,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:38:04,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:38:04,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:38:04,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:38:04,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:38:04,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:38:04,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:38:04,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:38:04,115 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:38:04,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:38:04,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:38:04,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:38:04,120 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:38:04,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:38:04,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:38:04,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:38:04,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:38:04,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:38:04,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:38:04,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:38:04,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:38:04,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:38:04,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:38:04,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:38:04,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:38:04,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:38:04,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:38:04,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:38:04,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:38:04,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:38:04,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:38:04,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:38:04,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:38:04,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:38:04,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:38:04,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:38:04,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:38:04,131 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 -> 4f5503e48f02726d819817f1067a36be8433e8bc [2020-07-28 21:38:04,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:38:04,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:38:04,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:38:04,494 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:38:04,498 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:38:04,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_tso.opt.i [2020-07-28 21:38:04,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6c2d63f/10b4f1927096462599d781ed73ff3cde/FLAGbd2e61e7d [2020-07-28 21:38:05,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:38:05,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_tso.opt.i [2020-07-28 21:38:05,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6c2d63f/10b4f1927096462599d781ed73ff3cde/FLAGbd2e61e7d [2020-07-28 21:38:05,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6c2d63f/10b4f1927096462599d781ed73ff3cde [2020-07-28 21:38:05,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:38:05,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:38:05,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:38:05,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:38:05,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:38:05,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:38:05" (1/1) ... [2020-07-28 21:38:05,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64632d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:05, skipping insertion in model container [2020-07-28 21:38:05,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:38:05" (1/1) ... [2020-07-28 21:38:05,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:38:05,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:38:06,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:38:06,147 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:38:06,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:38:06,287 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:38:06,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06 WrapperNode [2020-07-28 21:38:06,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:38:06,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:38:06,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:38:06,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:38:06,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:38:06,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:38:06,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:38:06,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:38:06,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (1/1) ... [2020-07-28 21:38:06,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:38:06,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:38:06,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:38:06,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:38:06,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (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 21:38:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:38:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:38:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:38:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:38:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:38:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:38:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:38:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:38:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:38:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:38:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:38:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:38:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:38:06,455 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 21:38:06,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:38:06,907 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:38:06,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:38:06 BoogieIcfgContainer [2020-07-28 21:38:06,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:38:06,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:38:06,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:38:06,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:38:06,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:38:05" (1/3) ... [2020-07-28 21:38:06,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d02787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:38:06, skipping insertion in model container [2020-07-28 21:38:06,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:38:06" (2/3) ... [2020-07-28 21:38:06,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d02787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:38:06, skipping insertion in model container [2020-07-28 21:38:06,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:38:06" (3/3) ... [2020-07-28 21:38:06,921 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2020-07-28 21:38:06,933 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:38:06,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:38:06,942 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:38:06,943 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:38:06,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:06,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,000 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,002 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,002 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:38:07,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:38:07,043 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:38:07,043 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:38:07,043 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:38:07,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:38:07,044 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:38:07,044 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:38:07,044 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:38:07,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:38:07,060 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:38:07,062 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:38:07,109 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:38:07,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:38:07,115 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:38:07,118 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:38:07,141 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:38:07,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:38:07,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:38:07,145 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:38:07,146 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:38:09,263 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2244 [2020-07-28 21:38:09,264 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:38:09,268 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:38:09,293 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-07-28 21:38:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-07-28 21:38:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:38:09,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:09,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:09,309 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-07-28 21:38:09,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:09,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468977698] [2020-07-28 21:38:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:09,499 INFO L280 TraceCheckUtils]: 0: Hoare triple {627#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {627#true} is VALID [2020-07-28 21:38:09,500 INFO L280 TraceCheckUtils]: 1: Hoare triple {627#true} [160] L765-->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] {627#true} is VALID [2020-07-28 21:38:09,500 INFO L280 TraceCheckUtils]: 2: Hoare triple {627#true} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {627#true} is VALID [2020-07-28 21:38:09,501 INFO L280 TraceCheckUtils]: 3: Hoare triple {627#true} [162] L767-->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] {627#true} is VALID [2020-07-28 21:38:09,501 INFO L280 TraceCheckUtils]: 4: Hoare triple {627#true} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {627#true} is VALID [2020-07-28 21:38:09,502 INFO L280 TraceCheckUtils]: 5: Hoare triple {627#true} [164] L769-->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] {627#true} is VALID [2020-07-28 21:38:09,503 INFO L280 TraceCheckUtils]: 6: Hoare triple {627#true} [216] L769-1-->L779: Formula: false InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_31|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_20, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {628#false} is VALID [2020-07-28 21:38:09,503 INFO L280 TraceCheckUtils]: 7: Hoare triple {628#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {628#false} is VALID [2020-07-28 21:38:09,507 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 21:38:09,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468977698] [2020-07-28 21:38:09,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:09,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:38:09,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15068188] [2020-07-28 21:38:09,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:38:09,517 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:09,521 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:38:09,550 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 21:38:09,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:38:09,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:09,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:38:09,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:38:09,563 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-07-28 21:38:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:09,710 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-07-28 21:38:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:38:09,711 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:38:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:38:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 19 transitions. [2020-07-28 21:38:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:38:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 19 transitions. [2020-07-28 21:38:09,714 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 19 transitions. [2020-07-28 21:38:09,740 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:09,768 INFO L225 Difference]: With dead ends: 274 [2020-07-28 21:38:09,769 INFO L226 Difference]: Without dead ends: 226 [2020-07-28 21:38:09,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:38:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-28 21:38:09,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:09,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-07-28 21:38:09,880 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:09,880 INFO L82 GeneralOperation]: Start isEquivalent. First operand 226 states. Second operand 226 states. [2020-07-28 21:38:09,881 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:38:09,881 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:38:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:09,906 INFO L93 Difference]: Finished difference Result 226 states and 634 transitions. [2020-07-28 21:38:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:38:09,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:09,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:09,909 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:38:09,909 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:38:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:09,935 INFO L93 Difference]: Finished difference Result 226 states and 634 transitions. [2020-07-28 21:38:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:38:09,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:09,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:09,937 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:09,938 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-28 21:38:09,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-07-28 21:38:09,958 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-07-28 21:38:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:09,958 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-07-28 21:38:09,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:38:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:38:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:38:09,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:09,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:09,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:38:09,960 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-07-28 21:38:09,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:09,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546927153] [2020-07-28 21:38:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:10,095 INFO L280 TraceCheckUtils]: 0: Hoare triple {1809#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,096 INFO L280 TraceCheckUtils]: 1: Hoare triple {1811#(<= ~y~0 0)} [160] L765-->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] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,097 INFO L280 TraceCheckUtils]: 2: Hoare triple {1811#(<= ~y~0 0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,097 INFO L280 TraceCheckUtils]: 3: Hoare triple {1811#(<= ~y~0 0)} [162] L767-->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] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,098 INFO L280 TraceCheckUtils]: 4: Hoare triple {1811#(<= ~y~0 0)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,102 INFO L280 TraceCheckUtils]: 5: Hoare triple {1811#(<= ~y~0 0)} [164] L769-->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] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,106 INFO L280 TraceCheckUtils]: 6: Hoare triple {1811#(<= ~y~0 0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1811#(<= ~y~0 0)} is VALID [2020-07-28 21:38:10,107 INFO L280 TraceCheckUtils]: 7: Hoare triple {1811#(<= ~y~0 0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1812#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:10,108 INFO L280 TraceCheckUtils]: 8: Hoare triple {1812#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {1810#false} is VALID [2020-07-28 21:38:10,109 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 21:38:10,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546927153] [2020-07-28 21:38:10,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:10,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:38:10,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278735785] [2020-07-28 21:38:10,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:38:10,112 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:10,112 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:38:10,127 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 21:38:10,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:38:10,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:10,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:38:10,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:38:10,128 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-07-28 21:38:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,252 INFO L93 Difference]: Finished difference Result 262 states and 700 transitions. [2020-07-28 21:38:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:10,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:38:10,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:38:10,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:38:10,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:38:10,313 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:10,320 INFO L225 Difference]: With dead ends: 262 [2020-07-28 21:38:10,320 INFO L226 Difference]: Without dead ends: 214 [2020-07-28 21:38:10,321 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 21:38:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-28 21:38:10,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,376 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,377 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,378 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-07-28 21:38:10,379 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:10,379 INFO L82 GeneralOperation]: Start isEquivalent. First operand 214 states. Second operand 214 states. [2020-07-28 21:38:10,379 INFO L74 IsIncluded]: Start isIncluded. First operand 214 states. Second operand 214 states. [2020-07-28 21:38:10,379 INFO L87 Difference]: Start difference. First operand 214 states. Second operand 214 states. [2020-07-28 21:38:10,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,393 INFO L93 Difference]: Finished difference Result 214 states and 590 transitions. [2020-07-28 21:38:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions. [2020-07-28 21:38:10,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:10,395 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:10,395 INFO L74 IsIncluded]: Start isIncluded. First operand 214 states. Second operand 214 states. [2020-07-28 21:38:10,395 INFO L87 Difference]: Start difference. First operand 214 states. Second operand 214 states. [2020-07-28 21:38:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,410 INFO L93 Difference]: Finished difference Result 214 states and 590 transitions. [2020-07-28 21:38:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions. [2020-07-28 21:38:10,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:10,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:10,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:10,411 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-28 21:38:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 590 transitions. [2020-07-28 21:38:10,425 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 590 transitions. Word has length 9 [2020-07-28 21:38:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:10,426 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 590 transitions. [2020-07-28 21:38:10,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:38:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions. [2020-07-28 21:38:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:38:10,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:10,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:10,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:38:10,427 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:10,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:10,427 INFO L82 PathProgramCache]: Analyzing trace with hash 984763373, now seen corresponding path program 1 times [2020-07-28 21:38:10,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:10,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102329651] [2020-07-28 21:38:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:10,524 INFO L280 TraceCheckUtils]: 0: Hoare triple {2935#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,525 INFO L280 TraceCheckUtils]: 1: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [160] L765-->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] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,525 INFO L280 TraceCheckUtils]: 2: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,526 INFO L280 TraceCheckUtils]: 3: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [162] L767-->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] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,527 INFO L280 TraceCheckUtils]: 4: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,527 INFO L280 TraceCheckUtils]: 5: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,528 INFO L280 TraceCheckUtils]: 6: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [164] L769-->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] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,529 INFO L280 TraceCheckUtils]: 7: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2937#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,530 INFO L280 TraceCheckUtils]: 8: Hoare triple {2937#(= 0 ~__unbuffered_p2_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2938#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:10,531 INFO L280 TraceCheckUtils]: 9: Hoare triple {2938#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {2936#false} is VALID [2020-07-28 21:38:10,532 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 21:38:10,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102329651] [2020-07-28 21:38:10,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:10,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:38:10,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054675767] [2020-07-28 21:38:10,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:38:10,533 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:10,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:38:10,548 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 21:38:10,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:38:10,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:10,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:38:10,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:38:10,549 INFO L87 Difference]: Start difference. First operand 214 states and 590 transitions. Second operand 4 states. [2020-07-28 21:38:10,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,638 INFO L93 Difference]: Finished difference Result 232 states and 614 transitions. [2020-07-28 21:38:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:10,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:38:10,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:38:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:38:10,640 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 37 transitions. [2020-07-28 21:38:10,685 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:10,690 INFO L225 Difference]: With dead ends: 232 [2020-07-28 21:38:10,690 INFO L226 Difference]: Without dead ends: 196 [2020-07-28 21:38:10,691 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 21:38:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-28 21:38:10,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,697 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,698 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,699 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,700 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,701 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,702 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,703 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:10,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-07-28 21:38:10,736 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:10,736 INFO L82 GeneralOperation]: Start isEquivalent. First operand 196 states. Second operand 196 states. [2020-07-28 21:38:10,736 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 196 states. [2020-07-28 21:38:10,736 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 196 states. [2020-07-28 21:38:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,747 INFO L93 Difference]: Finished difference Result 196 states and 530 transitions. [2020-07-28 21:38:10,748 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:38:10,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:10,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:10,748 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 196 states. [2020-07-28 21:38:10,749 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 196 states. [2020-07-28 21:38:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:10,761 INFO L93 Difference]: Finished difference Result 196 states and 530 transitions. [2020-07-28 21:38:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:38:10,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:10,761 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:10,762 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:10,762 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-07-28 21:38:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 530 transitions. [2020-07-28 21:38:10,772 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 530 transitions. Word has length 10 [2020-07-28 21:38:10,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:10,772 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 530 transitions. [2020-07-28 21:38:10,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:38:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:38:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:38:10,773 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:10,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:10,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:38:10,773 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:10,774 INFO L82 PathProgramCache]: Analyzing trace with hash 462854661, now seen corresponding path program 1 times [2020-07-28 21:38:10,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:10,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687060992] [2020-07-28 21:38:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:10,862 INFO L280 TraceCheckUtils]: 0: Hoare triple {3959#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,863 INFO L280 TraceCheckUtils]: 1: Hoare triple {3961#(= 0 ~x~0)} [160] L765-->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] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,863 INFO L280 TraceCheckUtils]: 2: Hoare triple {3961#(= 0 ~x~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,864 INFO L280 TraceCheckUtils]: 3: Hoare triple {3961#(= 0 ~x~0)} [162] L767-->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] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,865 INFO L280 TraceCheckUtils]: 4: Hoare triple {3961#(= 0 ~x~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,865 INFO L280 TraceCheckUtils]: 5: Hoare triple {3961#(= 0 ~x~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,866 INFO L280 TraceCheckUtils]: 6: Hoare triple {3961#(= 0 ~x~0)} [164] L769-->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] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,867 INFO L280 TraceCheckUtils]: 7: Hoare triple {3961#(= 0 ~x~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3961#(= 0 ~x~0)} is VALID [2020-07-28 21:38:10,867 INFO L280 TraceCheckUtils]: 8: Hoare triple {3961#(= 0 ~x~0)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3962#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:38:10,869 INFO L280 TraceCheckUtils]: 9: Hoare triple {3962#(= 0 ~__unbuffered_p2_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3963#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:10,870 INFO L280 TraceCheckUtils]: 10: Hoare triple {3963#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {3960#false} is VALID [2020-07-28 21:38:10,871 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 21:38:10,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687060992] [2020-07-28 21:38:10,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:10,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:38:10,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220133226] [2020-07-28 21:38:10,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:38:10,872 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:10,872 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:38:10,887 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 21:38:10,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:38:10,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:10,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:38:10,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:38:10,888 INFO L87 Difference]: Start difference. First operand 196 states and 530 transitions. Second operand 5 states. [2020-07-28 21:38:11,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,068 INFO L93 Difference]: Finished difference Result 255 states and 672 transitions. [2020-07-28 21:38:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:38:11,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:38:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2020-07-28 21:38:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2020-07-28 21:38:11,070 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 49 transitions. [2020-07-28 21:38:11,131 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 21:38:11,134 INFO L225 Difference]: With dead ends: 255 [2020-07-28 21:38:11,134 INFO L226 Difference]: Without dead ends: 150 [2020-07-28 21:38:11,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 21:38:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-28 21:38:11,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-28 21:38:11,167 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:11,167 INFO L82 GeneralOperation]: Start isEquivalent. First operand 150 states. Second operand 150 states. [2020-07-28 21:38:11,167 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 150 states. [2020-07-28 21:38:11,167 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 150 states. [2020-07-28 21:38:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,173 INFO L93 Difference]: Finished difference Result 150 states and 378 transitions. [2020-07-28 21:38:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:38:11,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,174 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 150 states. [2020-07-28 21:38:11,174 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 150 states. [2020-07-28 21:38:11,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,179 INFO L93 Difference]: Finished difference Result 150 states and 378 transitions. [2020-07-28 21:38:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:38:11,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,180 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,180 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:11,180 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-28 21:38:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-07-28 21:38:11,185 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-07-28 21:38:11,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:11,185 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-07-28 21:38:11,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:38:11,185 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:38:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:38:11,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:11,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:11,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:38:11,186 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:11,187 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-07-28 21:38:11,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:11,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497549259] [2020-07-28 21:38:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:11,281 INFO L280 TraceCheckUtils]: 0: Hoare triple {4827#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,282 INFO L280 TraceCheckUtils]: 1: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,283 INFO L280 TraceCheckUtils]: 2: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,284 INFO L280 TraceCheckUtils]: 3: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,284 INFO L280 TraceCheckUtils]: 4: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,285 INFO L280 TraceCheckUtils]: 5: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,286 INFO L280 TraceCheckUtils]: 6: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,287 INFO L280 TraceCheckUtils]: 7: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [164] L769-->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] {4829#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,288 INFO L280 TraceCheckUtils]: 8: Hoare triple {4829#(= 0 ~__unbuffered_cnt~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4830#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:11,289 INFO L280 TraceCheckUtils]: 9: Hoare triple {4830#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4830#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:11,291 INFO L280 TraceCheckUtils]: 10: Hoare triple {4830#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4828#false} is VALID [2020-07-28 21:38:11,291 INFO L280 TraceCheckUtils]: 11: Hoare triple {4828#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4828#false} is VALID [2020-07-28 21:38:11,292 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 21:38:11,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497549259] [2020-07-28 21:38:11,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:11,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:38:11,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169492111] [2020-07-28 21:38:11,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:38:11,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:11,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:38:11,310 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 21:38:11,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:38:11,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:11,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:38:11,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:38:11,311 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-07-28 21:38:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,431 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-07-28 21:38:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:11,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:38:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:11,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:38:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:38:11,434 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 48 transitions. [2020-07-28 21:38:11,499 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:11,502 INFO L225 Difference]: With dead ends: 164 [2020-07-28 21:38:11,502 INFO L226 Difference]: Without dead ends: 128 [2020-07-28 21:38:11,503 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 21:38:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-28 21:38:11,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-28 21:38:11,544 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:11,544 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-28 21:38:11,544 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-28 21:38:11,544 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-28 21:38:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,548 INFO L93 Difference]: Finished difference Result 128 states and 293 transitions. [2020-07-28 21:38:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:38:11,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,549 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,549 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-28 21:38:11,549 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-28 21:38:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,554 INFO L93 Difference]: Finished difference Result 128 states and 293 transitions. [2020-07-28 21:38:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:38:11,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,555 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:11,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:11,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-28 21:38:11,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-07-28 21:38:11,559 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-07-28 21:38:11,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:11,559 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-07-28 21:38:11,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:38:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:38:11,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:38:11,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:11,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:11,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:38:11,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:11,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:11,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-07-28 21:38:11,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:11,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388895643] [2020-07-28 21:38:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:11,677 INFO L280 TraceCheckUtils]: 0: Hoare triple {5511#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {5513#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,678 INFO L280 TraceCheckUtils]: 1: Hoare triple {5513#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {5513#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,680 INFO L280 TraceCheckUtils]: 2: Hoare triple {5513#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {5513#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,681 INFO L280 TraceCheckUtils]: 3: Hoare triple {5513#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {5513#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,682 INFO L280 TraceCheckUtils]: 4: Hoare triple {5513#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5513#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:11,703 INFO L280 TraceCheckUtils]: 5: Hoare triple {5513#(= 0 ~__unbuffered_cnt~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5514#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:11,708 INFO L280 TraceCheckUtils]: 6: Hoare triple {5514#(<= ~__unbuffered_cnt~0 1)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {5514#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:11,709 INFO L280 TraceCheckUtils]: 7: Hoare triple {5514#(<= ~__unbuffered_cnt~0 1)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5514#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:11,710 INFO L280 TraceCheckUtils]: 8: Hoare triple {5514#(<= ~__unbuffered_cnt~0 1)} [164] L769-->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] {5514#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:11,712 INFO L280 TraceCheckUtils]: 9: Hoare triple {5514#(<= ~__unbuffered_cnt~0 1)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5515#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:11,713 INFO L280 TraceCheckUtils]: 10: Hoare triple {5515#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5515#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:11,714 INFO L280 TraceCheckUtils]: 11: Hoare triple {5515#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5512#false} is VALID [2020-07-28 21:38:11,714 INFO L280 TraceCheckUtils]: 12: Hoare triple {5512#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5512#false} is VALID [2020-07-28 21:38:11,715 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 21:38:11,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388895643] [2020-07-28 21:38:11,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:11,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:38:11,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959629611] [2020-07-28 21:38:11,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:38:11,716 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:11,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:38:11,739 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 21:38:11,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:38:11,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:11,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:38:11,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:38:11,740 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-07-28 21:38:11,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,875 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-07-28 21:38:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:38:11,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:38:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:11,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:38:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:11,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:38:11,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2020-07-28 21:38:11,947 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:11,949 INFO L225 Difference]: With dead ends: 116 [2020-07-28 21:38:11,949 INFO L226 Difference]: Without dead ends: 92 [2020-07-28 21:38:11,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 21:38:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-28 21:38:11,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-07-28 21:38:11,975 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:11,975 INFO L82 GeneralOperation]: Start isEquivalent. First operand 92 states. Second operand 92 states. [2020-07-28 21:38:11,976 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 92 states. [2020-07-28 21:38:11,976 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 92 states. [2020-07-28 21:38:11,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,978 INFO L93 Difference]: Finished difference Result 92 states and 186 transitions. [2020-07-28 21:38:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:38:11,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,979 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 92 states. [2020-07-28 21:38:11,980 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 92 states. [2020-07-28 21:38:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:11,982 INFO L93 Difference]: Finished difference Result 92 states and 186 transitions. [2020-07-28 21:38:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:38:11,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:11,983 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:11,983 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:11,983 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-07-28 21:38:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-07-28 21:38:11,986 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-07-28 21:38:11,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:11,986 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-07-28 21:38:11,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:38:11,986 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:38:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:38:11,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:11,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:11,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:38:11,988 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-07-28 21:38:11,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:11,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315042062] [2020-07-28 21:38:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:12,036 INFO L280 TraceCheckUtils]: 0: Hoare triple {6004#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {6004#true} is VALID [2020-07-28 21:38:12,037 INFO L280 TraceCheckUtils]: 1: Hoare triple {6004#true} [160] L765-->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] {6004#true} is VALID [2020-07-28 21:38:12,038 INFO L280 TraceCheckUtils]: 2: Hoare triple {6004#true} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {6004#true} is VALID [2020-07-28 21:38:12,038 INFO L280 TraceCheckUtils]: 3: Hoare triple {6004#true} [162] L767-->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] {6004#true} is VALID [2020-07-28 21:38:12,038 INFO L280 TraceCheckUtils]: 4: Hoare triple {6004#true} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6004#true} is VALID [2020-07-28 21:38:12,039 INFO L280 TraceCheckUtils]: 5: Hoare triple {6004#true} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6004#true} is VALID [2020-07-28 21:38:12,039 INFO L280 TraceCheckUtils]: 6: Hoare triple {6004#true} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6004#true} is VALID [2020-07-28 21:38:12,040 INFO L280 TraceCheckUtils]: 7: Hoare triple {6004#true} [164] L769-->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] {6004#true} is VALID [2020-07-28 21:38:12,040 INFO L280 TraceCheckUtils]: 8: Hoare triple {6004#true} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6004#true} is VALID [2020-07-28 21:38:12,041 INFO L280 TraceCheckUtils]: 9: Hoare triple {6004#true} [155] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6006#(= 1 ~y~0)} is VALID [2020-07-28 21:38:12,042 INFO L280 TraceCheckUtils]: 10: Hoare triple {6006#(= 1 ~y~0)} [192] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= (+ v_~__unbuffered_cnt~0_40 1) v_~__unbuffered_cnt~0_39) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_40} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_39, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6006#(= 1 ~y~0)} is VALID [2020-07-28 21:38:12,042 INFO L280 TraceCheckUtils]: 11: Hoare triple {6006#(= 1 ~y~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6006#(= 1 ~y~0)} is VALID [2020-07-28 21:38:12,044 INFO L280 TraceCheckUtils]: 12: Hoare triple {6006#(= 1 ~y~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6007#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:12,045 INFO L280 TraceCheckUtils]: 13: Hoare triple {6007#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6005#false} is VALID [2020-07-28 21:38:12,046 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 21:38:12,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315042062] [2020-07-28 21:38:12,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:12,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:38:12,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875967497] [2020-07-28 21:38:12,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-07-28 21:38:12,047 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:12,047 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:38:12,064 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 21:38:12,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:38:12,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:12,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:38:12,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:38:12,065 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-07-28 21:38:12,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,146 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-07-28 21:38:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:12,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-07-28 21:38:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:12,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-07-28 21:38:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:38:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-07-28 21:38:12,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 34 transitions. [2020-07-28 21:38:12,195 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 21:38:12,198 INFO L225 Difference]: With dead ends: 120 [2020-07-28 21:38:12,198 INFO L226 Difference]: Without dead ends: 94 [2020-07-28 21:38:12,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:38:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-07-28 21:38:12,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-07-28 21:38:12,225 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:12,225 INFO L82 GeneralOperation]: Start isEquivalent. First operand 94 states. Second operand 90 states. [2020-07-28 21:38:12,225 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 90 states. [2020-07-28 21:38:12,226 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 90 states. [2020-07-28 21:38:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,228 INFO L93 Difference]: Finished difference Result 94 states and 179 transitions. [2020-07-28 21:38:12,228 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2020-07-28 21:38:12,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:12,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:12,229 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 94 states. [2020-07-28 21:38:12,229 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 94 states. [2020-07-28 21:38:12,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,232 INFO L93 Difference]: Finished difference Result 94 states and 179 transitions. [2020-07-28 21:38:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2020-07-28 21:38:12,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:12,232 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:12,233 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:12,233 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-28 21:38:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-07-28 21:38:12,235 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-07-28 21:38:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:12,235 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-07-28 21:38:12,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:38:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-07-28 21:38:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:38:12,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:12,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:12,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:38:12,237 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:12,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-07-28 21:38:12,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:12,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256218933] [2020-07-28 21:38:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:12,358 INFO L280 TraceCheckUtils]: 0: Hoare triple {6501#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {6503#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,359 INFO L280 TraceCheckUtils]: 1: Hoare triple {6503#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {6503#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,360 INFO L280 TraceCheckUtils]: 2: Hoare triple {6503#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {6503#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,360 INFO L280 TraceCheckUtils]: 3: Hoare triple {6503#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {6503#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,361 INFO L280 TraceCheckUtils]: 4: Hoare triple {6503#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6504#(and (= 1 ~x~0) (= 0 ~__unbuffered_cnt~0))} is VALID [2020-07-28 21:38:12,362 INFO L280 TraceCheckUtils]: 5: Hoare triple {6504#(and (= 1 ~x~0) (= 0 ~__unbuffered_cnt~0))} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6505#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~x~0))} is VALID [2020-07-28 21:38:12,363 INFO L280 TraceCheckUtils]: 6: Hoare triple {6505#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~x~0))} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {6505#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~x~0))} is VALID [2020-07-28 21:38:12,364 INFO L280 TraceCheckUtils]: 7: Hoare triple {6505#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~x~0))} [144] 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] {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} is VALID [2020-07-28 21:38:12,365 INFO L280 TraceCheckUtils]: 8: Hoare triple {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} is VALID [2020-07-28 21:38:12,366 INFO L280 TraceCheckUtils]: 9: Hoare triple {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} [164] L769-->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] {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} is VALID [2020-07-28 21:38:12,367 INFO L280 TraceCheckUtils]: 10: Hoare triple {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} is VALID [2020-07-28 21:38:12,368 INFO L280 TraceCheckUtils]: 11: Hoare triple {6506#(and (<= ~__unbuffered_cnt~0 1) (= 1 ~__unbuffered_p0_EAX~0))} [204] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6507#(and (= 1 ~__unbuffered_p0_EAX~0) (<= ~__unbuffered_cnt~0 2))} is VALID [2020-07-28 21:38:12,369 INFO L280 TraceCheckUtils]: 12: Hoare triple {6507#(and (= 1 ~__unbuffered_p0_EAX~0) (<= ~__unbuffered_cnt~0 2))} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6508#(not (= 0 ~__unbuffered_p0_EAX~0))} is VALID [2020-07-28 21:38:12,370 INFO L280 TraceCheckUtils]: 13: Hoare triple {6508#(not (= 0 ~__unbuffered_p0_EAX~0))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6509#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:12,371 INFO L280 TraceCheckUtils]: 14: Hoare triple {6509#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6502#false} is VALID [2020-07-28 21:38:12,372 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 21:38:12,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256218933] [2020-07-28 21:38:12,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:12,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-28 21:38:12,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872846726] [2020-07-28 21:38:12,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-07-28 21:38:12,374 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:12,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 21:38:12,394 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 21:38:12,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 21:38:12,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:12,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 21:38:12,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-28 21:38:12,395 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 9 states. [2020-07-28 21:38:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,791 INFO L93 Difference]: Finished difference Result 119 states and 221 transitions. [2020-07-28 21:38:12,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-28 21:38:12,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-07-28 21:38:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 21:38:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 71 transitions. [2020-07-28 21:38:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 21:38:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 71 transitions. [2020-07-28 21:38:12,793 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 71 transitions. [2020-07-28 21:38:12,875 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:12,876 INFO L225 Difference]: With dead ends: 119 [2020-07-28 21:38:12,876 INFO L226 Difference]: Without dead ends: 76 [2020-07-28 21:38:12,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-07-28 21:38:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-28 21:38:12,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-07-28 21:38:12,900 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:12,900 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 72 states. [2020-07-28 21:38:12,900 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 72 states. [2020-07-28 21:38:12,900 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 72 states. [2020-07-28 21:38:12,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,903 INFO L93 Difference]: Finished difference Result 76 states and 130 transitions. [2020-07-28 21:38:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 130 transitions. [2020-07-28 21:38:12,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:12,904 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:12,904 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 76 states. [2020-07-28 21:38:12,904 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 76 states. [2020-07-28 21:38:12,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:12,906 INFO L93 Difference]: Finished difference Result 76 states and 130 transitions. [2020-07-28 21:38:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 130 transitions. [2020-07-28 21:38:12,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:12,907 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:12,907 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:12,907 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-28 21:38:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 123 transitions. [2020-07-28 21:38:12,909 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 123 transitions. Word has length 15 [2020-07-28 21:38:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:12,910 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 123 transitions. [2020-07-28 21:38:12,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 21:38:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-07-28 21:38:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:38:12,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:12,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:12,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:38:12,911 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:12,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:12,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-07-28 21:38:12,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:12,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688748470] [2020-07-28 21:38:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:12,989 INFO L280 TraceCheckUtils]: 0: Hoare triple {6935#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {6937#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,990 INFO L280 TraceCheckUtils]: 1: Hoare triple {6937#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {6937#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,991 INFO L280 TraceCheckUtils]: 2: Hoare triple {6937#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {6937#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,992 INFO L280 TraceCheckUtils]: 3: Hoare triple {6937#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {6937#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,993 INFO L280 TraceCheckUtils]: 4: Hoare triple {6937#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6937#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:12,994 INFO L280 TraceCheckUtils]: 5: Hoare triple {6937#(= 0 ~__unbuffered_cnt~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6938#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:12,995 INFO L280 TraceCheckUtils]: 6: Hoare triple {6938#(<= ~__unbuffered_cnt~0 1)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6938#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:12,996 INFO L280 TraceCheckUtils]: 7: Hoare triple {6938#(<= ~__unbuffered_cnt~0 1)} [164] L769-->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] {6938#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:12,997 INFO L280 TraceCheckUtils]: 8: Hoare triple {6938#(<= ~__unbuffered_cnt~0 1)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6938#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:12,998 INFO L280 TraceCheckUtils]: 9: Hoare triple {6938#(<= ~__unbuffered_cnt~0 1)} [155] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6938#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:12,999 INFO L280 TraceCheckUtils]: 10: Hoare triple {6938#(<= ~__unbuffered_cnt~0 1)} [192] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= (+ v_~__unbuffered_cnt~0_40 1) v_~__unbuffered_cnt~0_39) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_40} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_39, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6939#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:38:13,001 INFO L280 TraceCheckUtils]: 11: Hoare triple {6939#(<= ~__unbuffered_cnt~0 2)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6940#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:13,002 INFO L280 TraceCheckUtils]: 12: Hoare triple {6940#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {6940#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:13,004 INFO L280 TraceCheckUtils]: 13: Hoare triple {6940#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6936#false} is VALID [2020-07-28 21:38:13,004 INFO L280 TraceCheckUtils]: 14: Hoare triple {6936#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6936#false} is VALID [2020-07-28 21:38:13,005 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 21:38:13,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688748470] [2020-07-28 21:38:13,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:13,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 21:38:13,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521281723] [2020-07-28 21:38:13,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:38:13,006 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:13,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:38:13,036 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 21:38:13,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:38:13,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:13,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:38:13,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:38:13,038 INFO L87 Difference]: Start difference. First operand 72 states and 123 transitions. Second operand 6 states. [2020-07-28 21:38:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,166 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2020-07-28 21:38:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:38:13,166 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:38:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:13,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:38:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2020-07-28 21:38:13,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:38:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2020-07-28 21:38:13,168 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 41 transitions. [2020-07-28 21:38:13,217 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:13,217 INFO L225 Difference]: With dead ends: 65 [2020-07-28 21:38:13,218 INFO L226 Difference]: Without dead ends: 28 [2020-07-28 21:38:13,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 21:38:13,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-28 21:38:13,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-28 21:38:13,227 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:13,227 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand 28 states. [2020-07-28 21:38:13,227 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-28 21:38:13,227 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-28 21:38:13,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,228 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2020-07-28 21:38:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-07-28 21:38:13,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:13,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:13,229 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2020-07-28 21:38:13,229 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2020-07-28 21:38:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,230 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2020-07-28 21:38:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-07-28 21:38:13,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:13,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:13,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:13,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:13,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-28 21:38:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-07-28 21:38:13,232 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 15 [2020-07-28 21:38:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:13,233 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-07-28 21:38:13,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:38:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-07-28 21:38:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:38:13,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:13,234 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 21:38:13,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:38:13,234 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:13,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:13,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1777188338, now seen corresponding path program 1 times [2020-07-28 21:38:13,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:13,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485524457] [2020-07-28 21:38:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:13,298 INFO L280 TraceCheckUtils]: 0: Hoare triple {7122#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= 0 |v_#NULL.base_5|) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2278~0.base_17|) |v_ULTIMATE.start_main_~#t2278~0.offset_13| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p2_EAX~0_38) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2278~0.base_17| 4)) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17|)) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2278~0.base_17|) (= 0 |v_ULTIMATE.start_main_~#t2278~0.offset_13|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2278~0.base_17| 1)) (= 0 v_~y~0_45))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_16|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, ULTIMATE.start_main_~#t2278~0.base=|v_ULTIMATE.start_main_~#t2278~0.base_17|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ULTIMATE.start_main_~#t2278~0.offset=|v_ULTIMATE.start_main_~#t2278~0.offset_13|, ~y~0=v_~y~0_45, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2279~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2278~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2278~0.offset, ~y~0, ~x~0] {7122#true} is VALID [2020-07-28 21:38:13,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {7122#true} [160] L765-->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] {7122#true} is VALID [2020-07-28 21:38:13,298 INFO L280 TraceCheckUtils]: 2: Hoare triple {7122#true} [200] L765-1-->L767: Formula: (and (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2279~0.base_12|) |v_ULTIMATE.start_main_~#t2279~0.offset_11| 1))) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2279~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2279~0.base_12|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2279~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2279~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2279~0.base_12| 1) |v_#valid_33|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2279~0.base=|v_ULTIMATE.start_main_~#t2279~0.base_12|, ULTIMATE.start_main_~#t2279~0.offset=|v_ULTIMATE.start_main_~#t2279~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2279~0.base, ULTIMATE.start_main_~#t2279~0.offset, #length] {7122#true} is VALID [2020-07-28 21:38:13,298 INFO L280 TraceCheckUtils]: 3: Hoare triple {7122#true} [162] L767-->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] {7122#true} is VALID [2020-07-28 21:38:13,299 INFO L280 TraceCheckUtils]: 4: Hoare triple {7122#true} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |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_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,300 INFO L280 TraceCheckUtils]: 5: Hoare triple {7124#(= 1 ~x~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,300 INFO L280 TraceCheckUtils]: 6: Hoare triple {7124#(= 1 ~x~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12| 1) |v_#valid_37|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2280~0.base_12|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2280~0.base_12|)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2280~0.base_12| 4) |v_#length_17|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2280~0.base_12|) |v_ULTIMATE.start_main_~#t2280~0.offset_10| 2)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2280~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2280~0.base=|v_ULTIMATE.start_main_~#t2280~0.base_12|, ULTIMATE.start_main_~#t2280~0.offset=|v_ULTIMATE.start_main_~#t2280~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2280~0.base, ULTIMATE.start_main_~#t2280~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,301 INFO L280 TraceCheckUtils]: 7: Hoare triple {7124#(= 1 ~x~0)} [164] L769-->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] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,301 INFO L280 TraceCheckUtils]: 8: Hoare triple {7124#(= 1 ~x~0)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~0_8) (= 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_8} 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_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,302 INFO L280 TraceCheckUtils]: 9: Hoare triple {7124#(= 1 ~x~0)} [155] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,303 INFO L280 TraceCheckUtils]: 10: Hoare triple {7124#(= 1 ~x~0)} [192] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= (+ v_~__unbuffered_cnt~0_40 1) v_~__unbuffered_cnt~0_39) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_40} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_39, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,303 INFO L280 TraceCheckUtils]: 11: Hoare triple {7124#(= 1 ~x~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} 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_12, 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] {7124#(= 1 ~x~0)} is VALID [2020-07-28 21:38:13,304 INFO L280 TraceCheckUtils]: 12: Hoare triple {7124#(= 1 ~x~0)} [144] 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] {7125#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:13,304 INFO L280 TraceCheckUtils]: 13: Hoare triple {7125#(= 1 ~__unbuffered_p0_EAX~0)} [204] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {7125#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:13,305 INFO L280 TraceCheckUtils]: 14: Hoare triple {7125#(= 1 ~__unbuffered_p0_EAX~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {7125#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:13,307 INFO L280 TraceCheckUtils]: 15: Hoare triple {7125#(= 1 ~__unbuffered_p0_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {7126#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:13,307 INFO L280 TraceCheckUtils]: 16: Hoare triple {7126#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {7123#false} is VALID [2020-07-28 21:38:13,308 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 21:38:13,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485524457] [2020-07-28 21:38:13,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:13,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:38:13,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929847357] [2020-07-28 21:38:13,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-28 21:38:13,309 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:13,309 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:38:13,328 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 21:38:13,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:38:13,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:13,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:38:13,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:38:13,329 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 5 states. [2020-07-28 21:38:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,406 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-07-28 21:38:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:13,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-28 21:38:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-28 21:38:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-28 21:38:13,407 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 19 transitions. [2020-07-28 21:38:13,434 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:13,434 INFO L225 Difference]: With dead ends: 27 [2020-07-28 21:38:13,434 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:38:13,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:38:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:38:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:38:13,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:13,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:13,436 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:13,436 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:13,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,436 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:38:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:13,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:13,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:13,437 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:13,437 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:13,437 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:38:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:13,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:13,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:13,438 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:13,438 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:38:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:38:13,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:38:13,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:13,438 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:38:13,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:38:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:13,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:13,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 21:38:13,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:38:13 BasicIcfg [2020-07-28 21:38:13,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:38:13,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:38:13,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:38:13,443 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:38:13,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:38:06" (3/4) ... [2020-07-28 21:38:13,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:38:13,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:38:13,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:38:13,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:38:13,458 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:38:13,459 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:38:13,459 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:38:13,508 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:38:13,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:38:13,511 INFO L168 Benchmark]: Toolchain (without parser) took 8033.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 311.4 MB). Free memory was 956.2 MB in the beginning and 985.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 282.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:13,511 INFO L168 Benchmark]: CDTParser took 0.49 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 21:38:13,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:13,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.81 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 21:38:13,513 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:13,513 INFO L168 Benchmark]: RCFGBuilder took 537.09 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:13,514 INFO L168 Benchmark]: TraceAbstraction took 6528.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 100.6 MB). Peak memory consumption was 246.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:13,514 INFO L168 Benchmark]: Witness Printer took 65.49 ms. Allocated memory is still 1.3 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:38:13,517 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 0.49 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 804.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.81 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 32.34 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 537.09 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6528.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 100.6 MB). Peak memory consumption was 246.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.49 ms. Allocated memory is still 1.3 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 76 ProgramPointsBefore, 31 ProgramPointsAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 609 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 2244 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 196 SDtfs, 191 SDslu, 357 SDs, 0 SdLazy, 212 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...