./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin000_pso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/thin000_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a512986c9f52d88249cdfd1ec8f689be71d52c18 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:48:03,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:48:03,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:48:03,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:48:03,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:48:03,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:48:03,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:48:03,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:48:03,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:48:03,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:48:03,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:48:03,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:48:03,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:48:03,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:48:03,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:48:03,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:48:03,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:48:03,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:48:03,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:48:03,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:48:03,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:48:03,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:48:03,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:48:03,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:48:03,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:48:03,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:48:03,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:48:03,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:48:03,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:48:03,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:48:03,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:48:03,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:48:03,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:48:03,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:48:03,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:48:03,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:48:03,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:48:03,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:48:03,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:48:03,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:48:03,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:48:03,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:48:03,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:48:03,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:48:03,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:48:03,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:48:03,696 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:48:03,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:48:03,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:48:03,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:48:03,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:48:03,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:48:03,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:48:03,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:48:03,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:48:03,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:48:03,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:48:03,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:48:03,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:48:03,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:48:03,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:48:03,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:48:03,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:48:03,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:48:03,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:48:03,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:48:03,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:48:03,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:48:03,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:48:03,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:48:03,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:48:03,703 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 -> a512986c9f52d88249cdfd1ec8f689be71d52c18 [2020-07-28 21:48:03,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:48:03,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:48:03,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:48:03,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:48:03,997 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:48:03,997 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_pso.oepc.i [2020-07-28 21:48:04,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b15552c2/42f16e30a2274b3884174c10193f2bb4/FLAG6160296ab [2020-07-28 21:48:04,597 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:48:04,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.oepc.i [2020-07-28 21:48:04,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b15552c2/42f16e30a2274b3884174c10193f2bb4/FLAG6160296ab [2020-07-28 21:48:04,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b15552c2/42f16e30a2274b3884174c10193f2bb4 [2020-07-28 21:48:04,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:48:04,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:48:04,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:48:04,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:48:04,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:48:04,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:48:04" (1/1) ... [2020-07-28 21:48:04,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fde7000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:04, skipping insertion in model container [2020-07-28 21:48:04,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:48:04" (1/1) ... [2020-07-28 21:48:04,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:48:04,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:48:05,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:48:05,424 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:48:05,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:48:05,608 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:48:05,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05 WrapperNode [2020-07-28 21:48:05,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:48:05,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:48:05,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:48:05,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:48:05,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:48:05,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:48:05,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:48:05,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:48:05,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (1/1) ... [2020-07-28 21:48:05,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:48:05,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:48:05,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:48:05,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:48:05,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (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 21:48:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:48:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:48:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:48:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:48:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:48:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:48:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:48:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:48:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:48:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:48:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:48:05,778 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 21:48:06,153 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:48:06,154 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:48:06,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:48:06 BoogieIcfgContainer [2020-07-28 21:48:06,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:48:06,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:48:06,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:48:06,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:48:06,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:48:04" (1/3) ... [2020-07-28 21:48:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cf1bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:48:06, skipping insertion in model container [2020-07-28 21:48:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:48:05" (2/3) ... [2020-07-28 21:48:06,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cf1bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:48:06, skipping insertion in model container [2020-07-28 21:48:06,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:48:06" (3/3) ... [2020-07-28 21:48:06,167 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_pso.oepc.i [2020-07-28 21:48:06,177 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:48:06,178 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:48:06,185 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:48:06,186 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:48:06,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,227 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,227 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,244 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:48:06,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-28 21:48:06,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:48:06,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:48:06,290 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:48:06,290 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:48:06,290 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:48:06,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:48:06,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:48:06,291 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:48:06,306 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-07-28 21:48:06,308 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-07-28 21:48:06,348 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-07-28 21:48:06,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:48:06,353 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-07-28 21:48:06,355 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-07-28 21:48:06,374 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-07-28 21:48:06,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:48:06,375 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-07-28 21:48:06,377 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-07-28 21:48:06,378 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:48:08,269 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-07-28 21:48:08,269 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-07-28 21:48:08,273 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-07-28 21:48:08,286 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-07-28 21:48:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-28 21:48:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-28 21:48:08,295 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:48:08,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-28 21:48:08,296 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:48:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:48:08,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-07-28 21:48:08,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:48:08,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252488500] [2020-07-28 21:48:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:48:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:48:08,568 INFO L280 TraceCheckUtils]: 0: Hoare triple {212#true} [184] ULTIMATE.startENTRY-->L750: Formula: (let ((.cse0 (store |v_#valid_47| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~y~0_18) (= |v_#valid_45| (store .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25| 1)) (= 0 v_~main$tmp_guard0~0_32) (= 0 |v_ULTIMATE.start_main_~#t2669~0.offset_18|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2669~0.base_25|) (= 0 v_~x~0_31) (= 0 v_~__unbuffered_cnt~0_95) (= 0 v_~__unbuffered_p1_EAX~0_40) (< 0 |v_#StackHeapBarrier_12|) (= 0 v_~__unbuffered_p0_EAX~0_34) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2669~0.base_25| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25|) |v_ULTIMATE.start_main_~#t2669~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_47|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2669~0.offset=|v_ULTIMATE.start_main_~#t2669~0.offset_18|, ULTIMATE.start_main_~#t2669~0.base=|v_ULTIMATE.start_main_~#t2669~0.base_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_23|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_18|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_24|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_34, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_40, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_45|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, ~y~0=v_~y~0_18, ~x~0=v_~x~0_31} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2669~0.offset, ULTIMATE.start_main_~#t2669~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2670~0.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2670~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {214#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,569 INFO L280 TraceCheckUtils]: 1: Hoare triple {214#(= 0 ~__unbuffered_p1_EAX~0)} [133] L750-->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] {214#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,570 INFO L280 TraceCheckUtils]: 2: Hoare triple {214#(= 0 ~__unbuffered_p1_EAX~0)} [171] L750-1-->L752: Formula: (and (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13| 1) |v_#valid_29|) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13|) |v_ULTIMATE.start_main_~#t2670~0.offset_11| 1)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t2670~0.offset_11|) (not (= |v_ULTIMATE.start_main_~#t2670~0.base_13| 0)) (= |v_#length_11| (store |v_#length_12| |v_ULTIMATE.start_main_~#t2670~0.base_13| 4)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_10|, #length=|v_#length_12|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_11|, #length=|v_#length_11|, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2670~0.offset, #length, ULTIMATE.start_main_~#t2670~0.base] {214#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,571 INFO L280 TraceCheckUtils]: 3: Hoare triple {214#(= 0 ~__unbuffered_p1_EAX~0)} [135] L752-->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] {214#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,572 INFO L280 TraceCheckUtils]: 4: Hoare triple {214#(= 0 ~__unbuffered_p1_EAX~0)} [175] L752-1-->L3: Formula: (and (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|) (let ((.cse0 (= 2 v_~__unbuffered_cnt~0_73))) (or (and (= 0 v_~main$tmp_guard0~0_26) (not .cse0)) (and .cse0 (= 1 v_~main$tmp_guard0~0_26)))) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_16|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet3, ~main$tmp_guard0~0] {214#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,573 INFO L280 TraceCheckUtils]: 5: Hoare triple {214#(= 0 ~__unbuffered_p1_EAX~0)} [182] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_31) (= 0 v_~main$tmp_guard1~0_24) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_16) (= 1 v_~__unbuffered_p1_EAX~0_36) (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {213#false} is VALID [2020-07-28 21:48:08,575 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 21:48:08,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252488500] [2020-07-28 21:48:08,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:48:08,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:48:08,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828131488] [2020-07-28 21:48:08,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-28 21:48:08,585 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:48:08,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:48:08,606 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:48:08,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:48:08,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:48:08,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:48:08,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:48:08,619 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-07-28 21:48:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:08,683 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-07-28 21:48:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:48:08,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-28 21:48:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:48:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:48:08,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 21:48:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:48:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 21:48:08,690 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 19 transitions. [2020-07-28 21:48:08,718 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 21:48:08,731 INFO L225 Difference]: With dead ends: 70 [2020-07-28 21:48:08,731 INFO L226 Difference]: Without dead ends: 54 [2020-07-28 21:48:08,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:48:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-28 21:48:08,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-28 21:48:08,779 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:48:08,780 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand 54 states. [2020-07-28 21:48:08,780 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:48:08,780 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:48:08,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:08,786 INFO L93 Difference]: Finished difference Result 54 states and 109 transitions. [2020-07-28 21:48:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-07-28 21:48:08,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:08,787 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:08,787 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:48:08,788 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:48:08,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:08,793 INFO L93 Difference]: Finished difference Result 54 states and 109 transitions. [2020-07-28 21:48:08,793 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-07-28 21:48:08,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:08,794 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:08,794 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:48:08,795 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:48:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-28 21:48:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-07-28 21:48:08,800 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-07-28 21:48:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:48:08,801 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-07-28 21:48:08,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:48:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-07-28 21:48:08,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 21:48:08,802 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:48:08,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:48:08,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:48:08,802 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:48:08,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:48:08,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-07-28 21:48:08,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:48:08,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21089069] [2020-07-28 21:48:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:48:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:48:08,902 INFO L280 TraceCheckUtils]: 0: Hoare triple {503#true} [184] ULTIMATE.startENTRY-->L750: Formula: (let ((.cse0 (store |v_#valid_47| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~y~0_18) (= |v_#valid_45| (store .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25| 1)) (= 0 v_~main$tmp_guard0~0_32) (= 0 |v_ULTIMATE.start_main_~#t2669~0.offset_18|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2669~0.base_25|) (= 0 v_~x~0_31) (= 0 v_~__unbuffered_cnt~0_95) (= 0 v_~__unbuffered_p1_EAX~0_40) (< 0 |v_#StackHeapBarrier_12|) (= 0 v_~__unbuffered_p0_EAX~0_34) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2669~0.base_25| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25|) |v_ULTIMATE.start_main_~#t2669~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_47|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2669~0.offset=|v_ULTIMATE.start_main_~#t2669~0.offset_18|, ULTIMATE.start_main_~#t2669~0.base=|v_ULTIMATE.start_main_~#t2669~0.base_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_23|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_18|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_24|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_34, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_40, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_45|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, ~y~0=v_~y~0_18, ~x~0=v_~x~0_31} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2669~0.offset, ULTIMATE.start_main_~#t2669~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2670~0.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2670~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {505#(= 0 ~x~0)} is VALID [2020-07-28 21:48:08,903 INFO L280 TraceCheckUtils]: 1: Hoare triple {505#(= 0 ~x~0)} [133] L750-->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] {505#(= 0 ~x~0)} is VALID [2020-07-28 21:48:08,904 INFO L280 TraceCheckUtils]: 2: Hoare triple {505#(= 0 ~x~0)} [171] L750-1-->L752: Formula: (and (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13| 1) |v_#valid_29|) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13|) |v_ULTIMATE.start_main_~#t2670~0.offset_11| 1)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t2670~0.offset_11|) (not (= |v_ULTIMATE.start_main_~#t2670~0.base_13| 0)) (= |v_#length_11| (store |v_#length_12| |v_ULTIMATE.start_main_~#t2670~0.base_13| 4)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_10|, #length=|v_#length_12|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_11|, #length=|v_#length_11|, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2670~0.offset, #length, ULTIMATE.start_main_~#t2670~0.base] {505#(= 0 ~x~0)} is VALID [2020-07-28 21:48:08,905 INFO L280 TraceCheckUtils]: 3: Hoare triple {505#(= 0 ~x~0)} [135] L752-->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] {505#(= 0 ~x~0)} is VALID [2020-07-28 21:48:08,906 INFO L280 TraceCheckUtils]: 4: Hoare triple {505#(= 0 ~x~0)} [141] P1ENTRY-->L727: Formula: (and (= v_~__unbuffered_p1_EAX~0_6 v_~x~0_7) (= |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|, ~x~0=v_~x~0_7} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, 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_7} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {506#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,907 INFO L280 TraceCheckUtils]: 5: Hoare triple {506#(= 0 ~__unbuffered_p1_EAX~0)} [175] L752-1-->L3: Formula: (and (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|) (let ((.cse0 (= 2 v_~__unbuffered_cnt~0_73))) (or (and (= 0 v_~main$tmp_guard0~0_26) (not .cse0)) (and .cse0 (= 1 v_~main$tmp_guard0~0_26)))) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_16|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet3, ~main$tmp_guard0~0] {506#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:48:08,908 INFO L280 TraceCheckUtils]: 6: Hoare triple {506#(= 0 ~__unbuffered_p1_EAX~0)} [182] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_31) (= 0 v_~main$tmp_guard1~0_24) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_16) (= 1 v_~__unbuffered_p1_EAX~0_36) (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {504#false} is VALID [2020-07-28 21:48:08,908 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 21:48:08,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21089069] [2020-07-28 21:48:08,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:48:08,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:48:08,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165814084] [2020-07-28 21:48:08,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 21:48:08,911 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:48:08,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:48:08,936 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:48:08,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:48:08,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:48:08,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:48:08,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:48:08,937 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-07-28 21:48:08,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:08,999 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-07-28 21:48:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:48:09,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 21:48:09,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:48:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:48:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2020-07-28 21:48:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:48:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2020-07-28 21:48:09,003 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 24 transitions. [2020-07-28 21:48:09,039 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:48:09,040 INFO L225 Difference]: With dead ends: 60 [2020-07-28 21:48:09,041 INFO L226 Difference]: Without dead ends: 36 [2020-07-28 21:48:09,042 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 21:48:09,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-28 21:48:09,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:48:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-28 21:48:09,056 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:48:09,056 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-28 21:48:09,057 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:48:09,057 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:48:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:09,060 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-07-28 21:48:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-07-28 21:48:09,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:09,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:09,061 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:48:09,062 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:48:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:09,065 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-07-28 21:48:09,065 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-07-28 21:48:09,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:09,066 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:09,067 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:48:09,067 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:48:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-28 21:48:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-07-28 21:48:09,069 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-07-28 21:48:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:48:09,070 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-07-28 21:48:09,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:48:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-07-28 21:48:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:48:09,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:48:09,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:48:09,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:48:09,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:48:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:48:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-07-28 21:48:09,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:48:09,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745200646] [2020-07-28 21:48:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:48:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:48:09,134 INFO L280 TraceCheckUtils]: 0: Hoare triple {715#true} [184] ULTIMATE.startENTRY-->L750: Formula: (let ((.cse0 (store |v_#valid_47| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~y~0_18) (= |v_#valid_45| (store .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25| 1)) (= 0 v_~main$tmp_guard0~0_32) (= 0 |v_ULTIMATE.start_main_~#t2669~0.offset_18|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2669~0.base_25|) (= 0 v_~x~0_31) (= 0 v_~__unbuffered_cnt~0_95) (= 0 v_~__unbuffered_p1_EAX~0_40) (< 0 |v_#StackHeapBarrier_12|) (= 0 v_~__unbuffered_p0_EAX~0_34) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2669~0.base_25| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2669~0.base_25|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2669~0.base_25|) |v_ULTIMATE.start_main_~#t2669~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_47|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2669~0.offset=|v_ULTIMATE.start_main_~#t2669~0.offset_18|, ULTIMATE.start_main_~#t2669~0.base=|v_ULTIMATE.start_main_~#t2669~0.base_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_23|, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_18|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_24|, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_34, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_40, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_45|, #memory_int=|v_#memory_int_15|, #length=|v_#length_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, ~y~0=v_~y~0_18, ~x~0=v_~x~0_31} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2669~0.offset, ULTIMATE.start_main_~#t2669~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_~#t2670~0.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2670~0.base, #NULL.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {717#(= 0 ~y~0)} is VALID [2020-07-28 21:48:09,135 INFO L280 TraceCheckUtils]: 1: Hoare triple {717#(= 0 ~y~0)} [133] L750-->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] {717#(= 0 ~y~0)} is VALID [2020-07-28 21:48:09,136 INFO L280 TraceCheckUtils]: 2: Hoare triple {717#(= 0 ~y~0)} [171] L750-1-->L752: Formula: (and (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13| 1) |v_#valid_29|) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2670~0.base_13|) |v_ULTIMATE.start_main_~#t2670~0.offset_11| 1)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t2670~0.offset_11|) (not (= |v_ULTIMATE.start_main_~#t2670~0.base_13| 0)) (= |v_#length_11| (store |v_#length_12| |v_ULTIMATE.start_main_~#t2670~0.base_13| 4)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2670~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_10|, #length=|v_#length_12|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t2670~0.offset=|v_ULTIMATE.start_main_~#t2670~0.offset_11|, #length=|v_#length_11|, ULTIMATE.start_main_~#t2670~0.base=|v_ULTIMATE.start_main_~#t2670~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2670~0.offset, #length, ULTIMATE.start_main_~#t2670~0.base] {717#(= 0 ~y~0)} is VALID [2020-07-28 21:48:09,137 INFO L280 TraceCheckUtils]: 3: Hoare triple {717#(= 0 ~y~0)} [135] L752-->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] {717#(= 0 ~y~0)} is VALID [2020-07-28 21:48:09,138 INFO L280 TraceCheckUtils]: 4: Hoare triple {717#(= 0 ~y~0)} [175] L752-1-->L3: Formula: (and (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|) (let ((.cse0 (= 2 v_~__unbuffered_cnt~0_73))) (or (and (= 0 v_~main$tmp_guard0~0_26) (not .cse0)) (and .cse0 (= 1 v_~main$tmp_guard0~0_26)))) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_16|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet3, ~main$tmp_guard0~0] {717#(= 0 ~y~0)} is VALID [2020-07-28 21:48:09,139 INFO L280 TraceCheckUtils]: 5: Hoare triple {717#(= 0 ~y~0)} [143] P0ENTRY-->L712: Formula: (and (= v_~__unbuffered_p0_EAX~0_4 v_~y~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_5} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_4, 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_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {718#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:48:09,139 INFO L280 TraceCheckUtils]: 6: Hoare triple {718#(= 0 ~__unbuffered_p0_EAX~0)} [122] L712-->L715: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {718#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:48:09,140 INFO L280 TraceCheckUtils]: 7: Hoare triple {718#(= 0 ~__unbuffered_p0_EAX~0)} [141] P1ENTRY-->L727: Formula: (and (= v_~__unbuffered_p1_EAX~0_6 v_~x~0_7) (= |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|, ~x~0=v_~x~0_7} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, 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_7} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {718#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:48:09,141 INFO L280 TraceCheckUtils]: 8: Hoare triple {718#(= 0 ~__unbuffered_p0_EAX~0)} [182] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_31) (= 0 v_~main$tmp_guard1~0_24) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_16) (= 1 v_~__unbuffered_p1_EAX~0_36) (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_31, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_36, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {716#false} is VALID [2020-07-28 21:48:09,142 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 21:48:09,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745200646] [2020-07-28 21:48:09,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:48:09,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:48:09,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068783815] [2020-07-28 21:48:09,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:48:09,147 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:48:09,147 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:48:09,163 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 21:48:09,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:48:09,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:48:09,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:48:09,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:48:09,164 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-07-28 21:48:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:09,204 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-07-28 21:48:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:48:09,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:48:09,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:48:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:48:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-07-28 21:48:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:48:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-07-28 21:48:09,206 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 15 transitions. [2020-07-28 21:48:09,230 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 21:48:09,231 INFO L225 Difference]: With dead ends: 30 [2020-07-28 21:48:09,231 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:48:09,231 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 21:48:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:48:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:48:09,232 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:48:09,232 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:48:09,232 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:48:09,233 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:48:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:09,233 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:48:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:48:09,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:09,234 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:09,234 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:48:09,234 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:48:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:48:09,235 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:48:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:48:09,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:09,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:48:09,235 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:48:09,235 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:48:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:48:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:48:09,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-07-28 21:48:09,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:48:09,236 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:48:09,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:48:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:48:09,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:48:09,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:48:09,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:48:09 BasicIcfg [2020-07-28 21:48:09,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:48:09,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:48:09,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:48:09,241 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:48:09,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:48:06" (3/4) ... [2020-07-28 21:48:09,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:48:09,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:48:09,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:48:09,256 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-07-28 21:48:09,256 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:48:09,257 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:48:09,302 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:48:09,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:48:09,305 INFO L168 Benchmark]: Toolchain (without parser) took 4419.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.2 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:48:09,306 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:48:09,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:48:09,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.79 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 21:48:09,308 INFO L168 Benchmark]: Boogie Preprocessor took 26.77 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:48:09,308 INFO L168 Benchmark]: RCFGBuilder took 464.02 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:48:09,309 INFO L168 Benchmark]: TraceAbstraction took 3080.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.5 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:48:09,309 INFO L168 Benchmark]: Witness Printer took 62.08 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-07-28 21:48:09,313 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 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 722.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.79 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 26.77 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 464.02 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3080.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.5 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.08 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 368 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 33 SDtfs, 32 SDslu, 20 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...