./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe026_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe026_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aea2d8477de5c60952dba48e226d5b740217444f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:42:07,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:42:07,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:42:07,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:42:07,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:42:07,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:42:07,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:42:07,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:42:07,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:42:07,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:42:07,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:42:07,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:42:07,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:42:07,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:42:07,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:42:07,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:42:07,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:42:07,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:42:07,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:42:07,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:42:07,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:42:07,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:42:07,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:42:07,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:42:07,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:42:07,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:42:07,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:42:07,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:42:07,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:42:07,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:42:07,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:42:07,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:42:07,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:42:07,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:42:07,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:42:07,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:42:07,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:42:07,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:42:07,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:42:07,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:42:07,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:42:07,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:42:07,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:42:07,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:42:07,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:42:07,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:42:07,780 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:42:07,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:42:07,782 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:42:07,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:42:07,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:42:07,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:42:07,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:42:07,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:42:07,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:42:07,785 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:42:07,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:42:07,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:42:07,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:42:07,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:42:07,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:42:07,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:42:07,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:42:07,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:42:07,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:42:07,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:42:07,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:42:07,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:42:07,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:42:07,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:42:07,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:42:07,790 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 -> aea2d8477de5c60952dba48e226d5b740217444f [2020-07-28 21:42:08,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:42:08,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:42:08,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:42:08,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:42:08,149 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:42:08,150 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe026_tso.oepc.i [2020-07-28 21:42:08,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8372f3d/d4147131e2c543b2a5b790af28165128/FLAG6ae0ed4b9 [2020-07-28 21:42:08,765 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:42:08,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe026_tso.oepc.i [2020-07-28 21:42:08,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8372f3d/d4147131e2c543b2a5b790af28165128/FLAG6ae0ed4b9 [2020-07-28 21:42:09,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8372f3d/d4147131e2c543b2a5b790af28165128 [2020-07-28 21:42:09,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:42:09,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:42:09,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:42:09,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:42:09,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:42:09,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8533d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09, skipping insertion in model container [2020-07-28 21:42:09,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:42:09,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:42:09,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:42:09,646 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:42:09,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:42:09,836 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:42:09,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09 WrapperNode [2020-07-28 21:42:09,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:42:09,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:42:09,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:42:09,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:42:09,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:42:09,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:42:09,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:42:09,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:42:09,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (1/1) ... [2020-07-28 21:42:09,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:42:09,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:42:09,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:42:09,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:42:09,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (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 21:42:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:42:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:42:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:42:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:42:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:42:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:42:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:42:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:42:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:42:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:42:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:42:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:42:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:42:09,998 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 21:42:10,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:42:10,460 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:42:10,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:10 BoogieIcfgContainer [2020-07-28 21:42:10,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:42:10,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:42:10,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:42:10,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:42:10,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:42:09" (1/3) ... [2020-07-28 21:42:10,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca0e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:42:10, skipping insertion in model container [2020-07-28 21:42:10,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:09" (2/3) ... [2020-07-28 21:42:10,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ca0e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:42:10, skipping insertion in model container [2020-07-28 21:42:10,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:10" (3/3) ... [2020-07-28 21:42:10,475 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-07-28 21:42:10,486 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:42:10,487 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:42:10,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:42:10,497 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:42:10,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,536 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,536 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,553 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,554 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,554 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,557 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,557 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:10,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:42:10,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:42:10,597 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:42:10,597 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:42:10,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:42:10,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:42:10,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:42:10,598 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:42:10,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:42:10,614 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:10,617 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:10,661 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:42:10,662 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:42:10,667 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:42:10,670 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:10,691 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:42:10,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:42:10,693 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:42:10,695 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:42:10,696 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:42:12,472 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-07-28 21:42:12,930 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-07-28 21:42:12,930 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-07-28 21:42:12,934 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:42:12,956 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-07-28 21:42:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-07-28 21:42:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:42:12,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:12,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:12,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:12,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-07-28 21:42:12,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:12,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940958533] [2020-07-28 21:42:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:13,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {531#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {533#(<= ~x~0 0)} [160] L763-->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] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,229 INFO L280 TraceCheckUtils]: 2: Hoare triple {533#(<= ~x~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,230 INFO L280 TraceCheckUtils]: 3: Hoare triple {533#(<= ~x~0 0)} [162] L765-->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] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,231 INFO L280 TraceCheckUtils]: 4: Hoare triple {533#(<= ~x~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,232 INFO L280 TraceCheckUtils]: 5: Hoare triple {533#(<= ~x~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,232 INFO L280 TraceCheckUtils]: 6: Hoare triple {533#(<= ~x~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:13,234 INFO L280 TraceCheckUtils]: 7: Hoare triple {533#(<= ~x~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {532#false} is VALID [2020-07-28 21:42:13,236 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 21:42:13,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940958533] [2020-07-28 21:42:13,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:13,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:42:13,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686467527] [2020-07-28 21:42:13,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:42:13,246 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:13,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:13,274 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:13,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:13,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:13,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:13,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:13,289 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-07-28 21:42:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,405 INFO L93 Difference]: Finished difference Result 218 states and 604 transitions. [2020-07-28 21:42:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:13,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:42:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:42:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:42:13,410 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 30 transitions. [2020-07-28 21:42:13,465 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:13,489 INFO L225 Difference]: With dead ends: 218 [2020-07-28 21:42:13,490 INFO L226 Difference]: Without dead ends: 170 [2020-07-28 21:42:13,491 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 21:42:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-28 21:42:13,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-07-28 21:42:13,600 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:13,601 INFO L82 GeneralOperation]: Start isEquivalent. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:13,602 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:13,602 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:13,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,635 INFO L93 Difference]: Finished difference Result 170 states and 452 transitions. [2020-07-28 21:42:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:13,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:13,639 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:13,639 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:13,639 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:13,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,664 INFO L93 Difference]: Finished difference Result 170 states and 452 transitions. [2020-07-28 21:42:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:13,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:13,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:13,675 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:13,675 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-07-28 21:42:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 452 transitions. [2020-07-28 21:42:13,689 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 452 transitions. Word has length 8 [2020-07-28 21:42:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:13,689 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 452 transitions. [2020-07-28 21:42:13,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:42:13,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:13,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:13,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:42:13,692 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:13,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:13,692 INFO L82 PathProgramCache]: Analyzing trace with hash 658729482, now seen corresponding path program 1 times [2020-07-28 21:42:13,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:13,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056036361] [2020-07-28 21:42:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:13,781 INFO L280 TraceCheckUtils]: 0: Hoare triple {1434#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,781 INFO L280 TraceCheckUtils]: 1: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [160] L763-->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] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,782 INFO L280 TraceCheckUtils]: 2: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,783 INFO L280 TraceCheckUtils]: 3: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [162] L765-->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] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,784 INFO L280 TraceCheckUtils]: 4: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,784 INFO L280 TraceCheckUtils]: 5: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,785 INFO L280 TraceCheckUtils]: 6: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,786 INFO L280 TraceCheckUtils]: 7: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:13,787 INFO L280 TraceCheckUtils]: 8: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1435#false} is VALID [2020-07-28 21:42:13,788 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 21:42:13,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056036361] [2020-07-28 21:42:13,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:13,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:42:13,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445130096] [2020-07-28 21:42:13,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:42:13,790 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:13,791 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:13,803 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 21:42:13,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:13,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:13,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:13,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:13,804 INFO L87 Difference]: Start difference. First operand 170 states and 452 transitions. Second operand 3 states. [2020-07-28 21:42:13,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,846 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:13,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:13,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:42:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:42:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:42:13,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2020-07-28 21:42:13,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:13,886 INFO L225 Difference]: With dead ends: 160 [2020-07-28 21:42:13,886 INFO L226 Difference]: Without dead ends: 160 [2020-07-28 21:42:13,887 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 21:42:13,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-28 21:42:13,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,908 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,910 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,911 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,912 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,913 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,940 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,941 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,942 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-28 21:42:13,944 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:13,944 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:13,944 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:13,944 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:13,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,955 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:13,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:13,956 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:13,956 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:13,956 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:13,967 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:13,967 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:13,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:13,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:13,968 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:13,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-28 21:42:13,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 419 transitions. [2020-07-28 21:42:13,979 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 419 transitions. Word has length 9 [2020-07-28 21:42:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:13,980 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 419 transitions. [2020-07-28 21:42:13,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:13,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:42:13,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:13,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:13,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:42:13,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:13,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1054810361, now seen corresponding path program 1 times [2020-07-28 21:42:13,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:13,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349597292] [2020-07-28 21:42:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:14,048 INFO L280 TraceCheckUtils]: 0: Hoare triple {2239#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,049 INFO L280 TraceCheckUtils]: 1: Hoare triple {2241#(<= ~x~0 0)} [160] L763-->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] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,050 INFO L280 TraceCheckUtils]: 2: Hoare triple {2241#(<= ~x~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,051 INFO L280 TraceCheckUtils]: 3: Hoare triple {2241#(<= ~x~0 0)} [162] L765-->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] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,052 INFO L280 TraceCheckUtils]: 4: Hoare triple {2241#(<= ~x~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,052 INFO L280 TraceCheckUtils]: 5: Hoare triple {2241#(<= ~x~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:14,053 INFO L280 TraceCheckUtils]: 6: Hoare triple {2241#(<= ~x~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:14,054 INFO L280 TraceCheckUtils]: 7: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:14,055 INFO L280 TraceCheckUtils]: 8: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:14,056 INFO L280 TraceCheckUtils]: 9: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2240#false} is VALID [2020-07-28 21:42:14,057 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 21:42:14,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349597292] [2020-07-28 21:42:14,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:14,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:14,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859401375] [2020-07-28 21:42:14,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:14,058 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:14,058 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:14,072 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:14,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:14,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:14,073 INFO L87 Difference]: Start difference. First operand 160 states and 419 transitions. Second operand 4 states. [2020-07-28 21:42:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,176 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-07-28 21:42:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:42:14,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:42:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:42:14,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:42:14,235 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:14,238 INFO L225 Difference]: With dead ends: 220 [2020-07-28 21:42:14,239 INFO L226 Difference]: Without dead ends: 148 [2020-07-28 21:42:14,239 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 21:42:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-28 21:42:14,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-07-28 21:42:14,277 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:14,277 INFO L82 GeneralOperation]: Start isEquivalent. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:14,277 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:14,277 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,285 INFO L93 Difference]: Finished difference Result 148 states and 377 transitions. [2020-07-28 21:42:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:14,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:14,286 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:14,286 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:14,287 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,295 INFO L93 Difference]: Finished difference Result 148 states and 377 transitions. [2020-07-28 21:42:14,295 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:14,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:14,296 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:14,296 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:14,297 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-07-28 21:42:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-07-28 21:42:14,305 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 10 [2020-07-28 21:42:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:14,305 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-07-28 21:42:14,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:42:14,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:14,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:14,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:42:14,307 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:14,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:14,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 2 times [2020-07-28 21:42:14,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:14,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367578590] [2020-07-28 21:42:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:14,420 INFO L280 TraceCheckUtils]: 0: Hoare triple {3059#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,421 INFO L280 TraceCheckUtils]: 1: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [160] L763-->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] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,422 INFO L280 TraceCheckUtils]: 2: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,423 INFO L280 TraceCheckUtils]: 3: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [162] L765-->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] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,424 INFO L280 TraceCheckUtils]: 4: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,424 INFO L280 TraceCheckUtils]: 5: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,426 INFO L280 TraceCheckUtils]: 6: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:42:14,427 INFO L280 TraceCheckUtils]: 7: Hoare triple {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:42:14,428 INFO L280 TraceCheckUtils]: 8: Hoare triple {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:42:14,429 INFO L280 TraceCheckUtils]: 9: Hoare triple {3062#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3060#false} is VALID [2020-07-28 21:42:14,430 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 21:42:14,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367578590] [2020-07-28 21:42:14,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:14,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:14,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077633292] [2020-07-28 21:42:14,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:14,431 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:14,432 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:14,450 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:14,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:14,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:14,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:14,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:14,452 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 4 states. [2020-07-28 21:42:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,578 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2020-07-28 21:42:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:42:14,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:14,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:14,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:42:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:42:14,582 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 47 transitions. [2020-07-28 21:42:14,635 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:14,637 INFO L225 Difference]: With dead ends: 168 [2020-07-28 21:42:14,638 INFO L226 Difference]: Without dead ends: 126 [2020-07-28 21:42:14,638 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 21:42:14,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-28 21:42:14,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,662 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,663 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:14,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-28 21:42:14,674 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:14,674 INFO L82 GeneralOperation]: Start isEquivalent. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:14,675 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:14,675 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,681 INFO L93 Difference]: Finished difference Result 126 states and 291 transitions. [2020-07-28 21:42:14,681 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:14,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:14,682 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:14,682 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:14,682 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,688 INFO L93 Difference]: Finished difference Result 126 states and 291 transitions. [2020-07-28 21:42:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:14,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:14,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:14,689 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:14,689 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-28 21:42:14,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-07-28 21:42:14,695 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 10 [2020-07-28 21:42:14,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:14,695 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-07-28 21:42:14,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:14,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:42:14,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:14,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:14,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:42:14,696 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:14,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:14,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186442, now seen corresponding path program 1 times [2020-07-28 21:42:14,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:14,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44438087] [2020-07-28 21:42:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:14,795 INFO L280 TraceCheckUtils]: 0: Hoare triple {3739#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,796 INFO L280 TraceCheckUtils]: 1: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [160] L763-->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] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,797 INFO L280 TraceCheckUtils]: 2: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,799 INFO L280 TraceCheckUtils]: 3: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [162] L765-->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] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,799 INFO L280 TraceCheckUtils]: 4: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,800 INFO L280 TraceCheckUtils]: 5: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,802 INFO L280 TraceCheckUtils]: 6: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,805 INFO L280 TraceCheckUtils]: 7: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:14,806 INFO L280 TraceCheckUtils]: 8: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3742#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:14,809 INFO L280 TraceCheckUtils]: 9: Hoare triple {3742#(<= ~__unbuffered_cnt~0 1)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3743#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:42:14,811 INFO L280 TraceCheckUtils]: 10: Hoare triple {3743#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3740#false} is VALID [2020-07-28 21:42:14,811 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 21:42:14,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44438087] [2020-07-28 21:42:14,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:14,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:42:14,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410883615] [2020-07-28 21:42:14,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:42:14,813 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:14,813 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:42:14,832 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:14,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:42:14,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:14,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:42:14,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:42:14,833 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-07-28 21:42:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:14,983 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-07-28 21:42:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:42:14,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:42:14,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:42:14,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2020-07-28 21:42:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:42:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2020-07-28 21:42:14,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 57 transitions. [2020-07-28 21:42:15,070 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,073 INFO L225 Difference]: With dead ends: 121 [2020-07-28 21:42:15,073 INFO L226 Difference]: Without dead ends: 93 [2020-07-28 21:42:15,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:42:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-28 21:42:15,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-07-28 21:42:15,100 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:15,100 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:15,100 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:15,100 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,105 INFO L93 Difference]: Finished difference Result 93 states and 192 transitions. [2020-07-28 21:42:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:15,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,106 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:15,106 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:15,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,111 INFO L93 Difference]: Finished difference Result 93 states and 192 transitions. [2020-07-28 21:42:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:15,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,111 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:15,112 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-28 21:42:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-07-28 21:42:15,115 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 11 [2020-07-28 21:42:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:15,116 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-07-28 21:42:15,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:42:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:42:15,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:15,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:15,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:42:15,117 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:15,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-07-28 21:42:15,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:15,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562087262] [2020-07-28 21:42:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:15,228 INFO L280 TraceCheckUtils]: 0: Hoare triple {4241#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,229 INFO L280 TraceCheckUtils]: 1: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [160] L763-->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] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,231 INFO L280 TraceCheckUtils]: 2: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,233 INFO L280 TraceCheckUtils]: 3: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [162] L765-->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] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,271 INFO L280 TraceCheckUtils]: 4: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,272 INFO L280 TraceCheckUtils]: 5: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,273 INFO L280 TraceCheckUtils]: 6: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,274 INFO L280 TraceCheckUtils]: 7: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:15,277 INFO L280 TraceCheckUtils]: 8: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4244#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:15,278 INFO L280 TraceCheckUtils]: 9: Hoare triple {4244#(<= ~__unbuffered_cnt~0 1)} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4244#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:15,279 INFO L280 TraceCheckUtils]: 10: Hoare triple {4244#(<= ~__unbuffered_cnt~0 1)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4245#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:42:15,282 INFO L280 TraceCheckUtils]: 11: Hoare triple {4245#(<= ~__unbuffered_cnt~0 2)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4246#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:42:15,285 INFO L280 TraceCheckUtils]: 12: Hoare triple {4246#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4242#false} is VALID [2020-07-28 21:42:15,285 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 21:42:15,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562087262] [2020-07-28 21:42:15,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:15,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:42:15,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706186950] [2020-07-28 21:42:15,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:42:15,287 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:15,287 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:42:15,307 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:42:15,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:15,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:42:15,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:42:15,308 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 6 states. [2020-07-28 21:42:15,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,489 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-07-28 21:42:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:42:15,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:42:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:42:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:42:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:42:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:42:15,492 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 49 transitions. [2020-07-28 21:42:15,575 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,577 INFO L225 Difference]: With dead ends: 87 [2020-07-28 21:42:15,577 INFO L226 Difference]: Without dead ends: 78 [2020-07-28 21:42:15,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:42:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-28 21:42:15,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-28 21:42:15,607 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:15,607 INFO L82 GeneralOperation]: Start isEquivalent. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:15,607 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:15,608 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:15,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,610 INFO L93 Difference]: Finished difference Result 78 states and 162 transitions. [2020-07-28 21:42:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:15,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,611 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,611 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:15,611 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,613 INFO L93 Difference]: Finished difference Result 78 states and 162 transitions. [2020-07-28 21:42:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:15,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,614 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,614 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:15,614 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-28 21:42:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-07-28 21:42:15,617 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-07-28 21:42:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:15,617 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-07-28 21:42:15,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:42:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:42:15,618 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:15,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:15,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:42:15,618 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:15,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:15,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-07-28 21:42:15,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:15,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308043775] [2020-07-28 21:42:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:15,679 INFO L280 TraceCheckUtils]: 0: Hoare triple {4650#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {4650#true} is VALID [2020-07-28 21:42:15,679 INFO L280 TraceCheckUtils]: 1: Hoare triple {4650#true} [160] L763-->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] {4650#true} is VALID [2020-07-28 21:42:15,680 INFO L280 TraceCheckUtils]: 2: Hoare triple {4650#true} [181] P0ENTRY-->L713: Formula: (and (= 1 v_~y~0_7) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,681 INFO L280 TraceCheckUtils]: 3: Hoare triple {4652#(= 1 ~y~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,681 INFO L280 TraceCheckUtils]: 4: Hoare triple {4652#(= 1 ~y~0)} [193] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|) (= (+ v_~__unbuffered_cnt~0_79 1) v_~__unbuffered_cnt~0_78)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_78} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,682 INFO L280 TraceCheckUtils]: 5: Hoare triple {4652#(= 1 ~y~0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,683 INFO L280 TraceCheckUtils]: 6: Hoare triple {4652#(= 1 ~y~0)} [162] L765-->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] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,683 INFO L280 TraceCheckUtils]: 7: Hoare triple {4652#(= 1 ~y~0)} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,684 INFO L280 TraceCheckUtils]: 8: Hoare triple {4652#(= 1 ~y~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,684 INFO L280 TraceCheckUtils]: 9: Hoare triple {4652#(= 1 ~y~0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:15,685 INFO L280 TraceCheckUtils]: 10: Hoare triple {4652#(= 1 ~y~0)} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:15,686 INFO L280 TraceCheckUtils]: 11: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:15,686 INFO L280 TraceCheckUtils]: 12: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:15,687 INFO L280 TraceCheckUtils]: 13: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:15,688 INFO L280 TraceCheckUtils]: 14: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:15,688 INFO L280 TraceCheckUtils]: 15: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4651#false} is VALID [2020-07-28 21:42:15,689 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 21:42:15,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308043775] [2020-07-28 21:42:15,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:15,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:42:15,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25606331] [2020-07-28 21:42:15,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:42:15,691 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:15,691 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:15,709 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:15,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:15,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:15,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:15,710 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-07-28 21:42:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,781 INFO L93 Difference]: Finished difference Result 91 states and 183 transitions. [2020-07-28 21:42:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:42:15,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:42:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:15,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:42:15,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:42:15,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 32 transitions. [2020-07-28 21:42:15,818 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,819 INFO L225 Difference]: With dead ends: 91 [2020-07-28 21:42:15,819 INFO L226 Difference]: Without dead ends: 33 [2020-07-28 21:42:15,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:42:15,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-28 21:42:15,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:15,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-28 21:42:15,830 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:15,830 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:15,830 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:15,830 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:15,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,832 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:42:15,832 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:15,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,832 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,832 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:15,833 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,834 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:42:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:15,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:15,835 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:15,835 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:15,835 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-28 21:42:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-07-28 21:42:15,836 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-07-28 21:42:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:15,837 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-07-28 21:42:15,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:42:15,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:15,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:15,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:42:15,838 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:15,839 INFO L82 PathProgramCache]: Analyzing trace with hash -867586631, now seen corresponding path program 2 times [2020-07-28 21:42:15,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:15,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974682030] [2020-07-28 21:42:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:15,934 INFO L280 TraceCheckUtils]: 0: Hoare triple {4881#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= |v_#valid_52| (store .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16| 1)) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2411~0.base_16| 4)) (= 0 v_~y~0_18) (= v_~__unbuffered_p2_EBX~0_41 0) (= 0 |v_ULTIMATE.start_main_~#t2411~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2411~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2411~0.base_16|) (= 0 v_~main$tmp_guard1~0_45) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2411~0.base_16|) |v_ULTIMATE.start_main_~#t2411~0.offset_13| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_~#t2411~0.offset=|v_ULTIMATE.start_main_~#t2411~0.offset_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_13|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2411~0.base=|v_ULTIMATE.start_main_~#t2411~0.base_16|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_16|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ~y~0=v_~y~0_18, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_15|, ~x~0=v_~x~0_57} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2411~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2413~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2411~0.base, ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2413~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2412~0.base, ~x~0] {4881#true} is VALID [2020-07-28 21:42:15,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {4881#true} [160] L763-->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] {4881#true} is VALID [2020-07-28 21:42:15,935 INFO L280 TraceCheckUtils]: 2: Hoare triple {4881#true} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11| 1)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2412~0.base_11|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2412~0.base_11| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2412~0.base_11|) |v_ULTIMATE.start_main_~#t2412~0.offset_9| 1)) |v_#memory_int_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2412~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2412~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2412~0.offset=|v_ULTIMATE.start_main_~#t2412~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2412~0.base=|v_ULTIMATE.start_main_~#t2412~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2412~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2412~0.base] {4881#true} is VALID [2020-07-28 21:42:15,936 INFO L280 TraceCheckUtils]: 3: Hoare triple {4881#true} [162] L765-->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] {4881#true} is VALID [2020-07-28 21:42:15,936 INFO L280 TraceCheckUtils]: 4: Hoare triple {4881#true} [199] L765-1-->L767: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2413~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2413~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12| 1) |v_#valid_33|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2413~0.base_12| 4)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2413~0.base_12|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2413~0.base_12|) |v_ULTIMATE.start_main_~#t2413~0.offset_10| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2413~0.base=|v_ULTIMATE.start_main_~#t2413~0.base_12|, ULTIMATE.start_main_~#t2413~0.offset=|v_ULTIMATE.start_main_~#t2413~0.offset_10|, #length=|v_#length_15|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2413~0.base, ULTIMATE.start_main_~#t2413~0.offset, #length] {4881#true} is VALID [2020-07-28 21:42:15,937 INFO L280 TraceCheckUtils]: 5: Hoare triple {4881#true} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4881#true} is VALID [2020-07-28 21:42:15,937 INFO L280 TraceCheckUtils]: 6: Hoare triple {4881#true} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4881#true} is VALID [2020-07-28 21:42:15,938 INFO L280 TraceCheckUtils]: 7: Hoare triple {4881#true} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4881#true} is VALID [2020-07-28 21:42:15,938 INFO L280 TraceCheckUtils]: 8: Hoare triple {4881#true} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4881#true} is VALID [2020-07-28 21:42:15,938 INFO L280 TraceCheckUtils]: 9: Hoare triple {4881#true} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4881#true} is VALID [2020-07-28 21:42:15,938 INFO L280 TraceCheckUtils]: 10: Hoare triple {4881#true} [181] P0ENTRY-->L713: Formula: (and (= 1 v_~y~0_7) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4881#true} is VALID [2020-07-28 21:42:15,942 INFO L280 TraceCheckUtils]: 11: Hoare triple {4881#true} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:15,943 INFO L280 TraceCheckUtils]: 12: Hoare triple {4883#(= 1 ~x~0)} [193] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|) (= (+ v_~__unbuffered_cnt~0_79 1) v_~__unbuffered_cnt~0_78)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_78} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:15,943 INFO L280 TraceCheckUtils]: 13: Hoare triple {4883#(= 1 ~x~0)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:15,944 INFO L280 TraceCheckUtils]: 14: Hoare triple {4883#(= 1 ~x~0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:15,946 INFO L280 TraceCheckUtils]: 15: Hoare triple {4883#(= 1 ~x~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4882#false} is VALID [2020-07-28 21:42:15,946 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 21:42:15,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974682030] [2020-07-28 21:42:15,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:15,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:15,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282356357] [2020-07-28 21:42:15,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:42:15,948 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:15,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:15,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:15,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:15,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:15,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:15,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:15,968 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 3 states. [2020-07-28 21:42:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:15,992 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-07-28 21:42:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:15,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:42:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:42:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:42:15,998 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2020-07-28 21:42:16,022 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:16,023 INFO L225 Difference]: With dead ends: 32 [2020-07-28 21:42:16,023 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:42:16,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:16,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:42:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:42:16,024 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:16,024 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:16,024 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:16,025 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:16,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:16,025 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:42:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:16,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:16,025 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:16,025 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:16,025 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:16,026 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:42:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:16,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:16,027 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:16,027 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:16,027 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:42:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:42:16,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:42:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:16,028 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:42:16,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:16,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:16,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:42:16,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:42:16 BasicIcfg [2020-07-28 21:42:16,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:42:16,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:42:16,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:42:16,037 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:42:16,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:10" (3/4) ... [2020-07-28 21:42:16,042 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:42:16,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:42:16,051 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:42:16,051 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:42:16,061 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:42:16,061 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:42:16,062 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:42:16,142 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:42:16,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:42:16,145 INFO L168 Benchmark]: Toolchain (without parser) took 7085.98 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 957.5 MB in the beginning and 1.2 GB in the end (delta: -232.5 MB). Peak memory consumption was 85.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:16,154 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:42:16,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:16,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.56 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 21:42:16,165 INFO L168 Benchmark]: Boogie Preprocessor took 31.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:16,166 INFO L168 Benchmark]: RCFGBuilder took 544.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:16,167 INFO L168 Benchmark]: TraceAbstraction took 5569.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -134.5 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:16,167 INFO L168 Benchmark]: Witness Printer took 106.18 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:42:16,173 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 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 774.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 544.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5569.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -134.5 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. * Witness Printer took 106.18 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2133 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 142 SDtfs, 123 SDslu, 180 SDs, 0 SdLazy, 103 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...