./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8439ffc85e08313f63ce9eb8dee39f1e2fa1a0b8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:47:19,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:47:19,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:47:19,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:47:19,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:47:19,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:47:19,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:47:19,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:47:19,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:47:19,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:47:19,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:47:19,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:47:19,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:47:19,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:47:19,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:47:19,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:47:19,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:47:19,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:47:19,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:47:19,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:47:19,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:47:19,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:47:19,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:47:19,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:47:19,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:47:19,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:47:19,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:47:19,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:47:19,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:47:19,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:47:19,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:47:19,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:47:19,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:47:19,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:47:19,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:47:19,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:47:19,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:47:19,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:47:19,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:47:19,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:47:19,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:47:19,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:47:19,951 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:47:19,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:47:19,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:47:19,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:47:19,954 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:47:19,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:47:19,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:47:19,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:47:19,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:47:19,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:47:19,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:47:19,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:47:19,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:47:19,957 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:47:19,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:47:19,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:47:19,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:47:19,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:47:19,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:47:19,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:47:19,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:47:19,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:47:19,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:47:19,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:47:19,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:47:19,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:47:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:47:19,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:47:19,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:47:19,962 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 -> 8439ffc85e08313f63ce9eb8dee39f1e2fa1a0b8 [2020-07-28 21:47:20,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:47:20,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:47:20,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:47:20,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:47:20,366 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:47:20,366 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_pso.oepc.i [2020-07-28 21:47:20,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad493e6c/e5aebeb6cb62487980c7f018277e66a7/FLAGb81f04bc3 [2020-07-28 21:47:20,987 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:47:20,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.oepc.i [2020-07-28 21:47:21,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad493e6c/e5aebeb6cb62487980c7f018277e66a7/FLAGb81f04bc3 [2020-07-28 21:47:21,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad493e6c/e5aebeb6cb62487980c7f018277e66a7 [2020-07-28 21:47:21,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:47:21,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:47:21,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:21,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:47:21,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:47:21,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:21" (1/1) ... [2020-07-28 21:47:21,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dbb287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:21, skipping insertion in model container [2020-07-28 21:47:21,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:21" (1/1) ... [2020-07-28 21:47:21,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:47:21,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:47:22,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:22,048 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:47:22,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:22,255 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:47:22,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22 WrapperNode [2020-07-28 21:47:22,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:22,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:22,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:47:22,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:47:22,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:22,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:47:22,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:47:22,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:47:22,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (1/1) ... [2020-07-28 21:47:22,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:47:22,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:47:22,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:47:22,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:47:22,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (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 21:47:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:47:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:47:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:47:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:47:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:47:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:47:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:47:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:47:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:47:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:47:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:47:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:47:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:47:22,450 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 21:47:22,956 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:47:22,956 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:47:22,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:22 BoogieIcfgContainer [2020-07-28 21:47:22,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:47:22,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:47:22,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:47:22,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:47:22,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:47:21" (1/3) ... [2020-07-28 21:47:22,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791caf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:22, skipping insertion in model container [2020-07-28 21:47:22,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:22" (2/3) ... [2020-07-28 21:47:22,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791caf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:22, skipping insertion in model container [2020-07-28 21:47:22,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:22" (3/3) ... [2020-07-28 21:47:22,972 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2020-07-28 21:47:22,984 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:47:22,984 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:47:22,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:47:22,995 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:47:23,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,051 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:23,080 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:47:23,103 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:47:23,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:47:23,104 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:47:23,104 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:47:23,104 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:47:23,104 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:47:23,105 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:47:23,105 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:47:23,118 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:23,120 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:23,164 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:23,165 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:23,170 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:47:23,173 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:23,196 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:23,196 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:23,197 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:47:23,199 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:47:23,201 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:47:25,309 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-07-28 21:47:25,699 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-07-28 21:47:25,699 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:47:25,704 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-07-28 21:47:25,743 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:47:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:47:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:47:25,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:25,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:25,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-07-28 21:47:25,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:25,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882241332] [2020-07-28 21:47:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:26,025 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [165] L774-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,028 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,029 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [167] L776-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,030 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,031 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [169] L778-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,032 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:47:26,033 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:47:26,036 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 21:47:26,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882241332] [2020-07-28 21:47:26,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:26,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:47:26,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288956724] [2020-07-28 21:47:26,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:26,052 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:26,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:26,086 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 21:47:26,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:26,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:26,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:26,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:26,102 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:47:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,256 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-07-28 21:47:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:26,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:26,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:26,266 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:26,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:26,332 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:26,333 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:47:26,335 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 21:47:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:47:26,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:47:26,447 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:26,447 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:26,448 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:26,448 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,468 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:26,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:26,472 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:26,472 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:26,472 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,491 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:26,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:26,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:26,494 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:26,494 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:47:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:47:26,512 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-07-28 21:47:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:26,512 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:47:26,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:47:26,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:26,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:26,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:47:26,515 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:26,516 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-07-28 21:47:26,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:26,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22519426] [2020-07-28 21:47:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:26,600 INFO L280 TraceCheckUtils]: 0: Hoare triple {1756#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1756#true} is VALID [2020-07-28 21:47:26,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {1756#true} [165] L774-->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] {1756#true} is VALID [2020-07-28 21:47:26,601 INFO L280 TraceCheckUtils]: 2: Hoare triple {1756#true} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1756#true} is VALID [2020-07-28 21:47:26,601 INFO L280 TraceCheckUtils]: 3: Hoare triple {1756#true} [167] L776-->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] {1756#true} is VALID [2020-07-28 21:47:26,602 INFO L280 TraceCheckUtils]: 4: Hoare triple {1756#true} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {1756#true} is VALID [2020-07-28 21:47:26,602 INFO L280 TraceCheckUtils]: 5: Hoare triple {1756#true} [169] L778-->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] {1756#true} is VALID [2020-07-28 21:47:26,604 INFO L280 TraceCheckUtils]: 6: Hoare triple {1756#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:26,604 INFO L280 TraceCheckUtils]: 7: Hoare triple {1758#(= 1 ~y~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:26,605 INFO L280 TraceCheckUtils]: 8: Hoare triple {1758#(= 1 ~y~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} 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_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:26,606 INFO L280 TraceCheckUtils]: 9: Hoare triple {1758#(= 1 ~y~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1757#false} is VALID [2020-07-28 21:47:26,607 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 21:47:26,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22519426] [2020-07-28 21:47:26,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:26,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:26,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938123577] [2020-07-28 21:47:26,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:26,610 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:26,611 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:26,625 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 21:47:26,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:26,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:26,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:26,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:26,627 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:47:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,689 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-07-28 21:47:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:26,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:26,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:26,692 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:26,724 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:26,728 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:26,728 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 21:47:26,729 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 21:47:26,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 21:47:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-28 21:47:26,779 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:26,779 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:26,779 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:26,780 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,791 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:26,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:26,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:26,792 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:26,793 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:26,805 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:26,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:26,806 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:26,806 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:26,806 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 21:47:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-07-28 21:47:26,817 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-07-28 21:47:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:26,818 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-07-28 21:47:26,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:47:26,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:26,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:26,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:47:26,819 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-07-28 21:47:26,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:26,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326504809] [2020-07-28 21:47:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:26,960 INFO L280 TraceCheckUtils]: 0: Hoare triple {2587#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,962 INFO L280 TraceCheckUtils]: 1: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,963 INFO L280 TraceCheckUtils]: 2: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,964 INFO L280 TraceCheckUtils]: 3: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,965 INFO L280 TraceCheckUtils]: 4: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,966 INFO L280 TraceCheckUtils]: 5: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,967 INFO L280 TraceCheckUtils]: 6: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,967 INFO L280 TraceCheckUtils]: 7: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,968 INFO L280 TraceCheckUtils]: 8: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) 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_9, 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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:26,970 INFO L280 TraceCheckUtils]: 9: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:26,972 INFO L280 TraceCheckUtils]: 10: Hoare triple {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2588#false} is VALID [2020-07-28 21:47:26,973 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 21:47:26,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326504809] [2020-07-28 21:47:26,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:26,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:26,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46511524] [2020-07-28 21:47:26,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:26,975 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:26,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:26,992 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 21:47:26,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:26,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:26,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:26,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:26,993 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-07-28 21:47:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,136 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-07-28 21:47:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:47:27,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:27,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 49 transitions. [2020-07-28 21:47:27,197 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 21:47:27,199 INFO L225 Difference]: With dead ends: 165 [2020-07-28 21:47:27,199 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 21:47:27,200 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 21:47:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 21:47:27,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-28 21:47:27,228 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:27,228 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:27,228 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:27,228 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:27,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,234 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:27,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:27,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:27,235 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:27,235 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,240 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:27,240 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:27,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:27,241 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:27,241 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:27,241 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-28 21:47:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-07-28 21:47:27,247 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-07-28 21:47:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:27,247 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-07-28 21:47:27,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:47:27,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:27,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:27,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:47:27,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:27,249 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-07-28 21:47:27,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:27,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92332204] [2020-07-28 21:47:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:27,331 INFO L280 TraceCheckUtils]: 0: Hoare triple {3212#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,332 INFO L280 TraceCheckUtils]: 1: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,333 INFO L280 TraceCheckUtils]: 2: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,334 INFO L280 TraceCheckUtils]: 3: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,334 INFO L280 TraceCheckUtils]: 4: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,335 INFO L280 TraceCheckUtils]: 5: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,336 INFO L280 TraceCheckUtils]: 6: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,336 INFO L280 TraceCheckUtils]: 7: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,337 INFO L280 TraceCheckUtils]: 8: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:27,338 INFO L280 TraceCheckUtils]: 9: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) 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_9, 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] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:27,339 INFO L280 TraceCheckUtils]: 10: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} 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_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:27,341 INFO L280 TraceCheckUtils]: 11: Hoare triple {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3213#false} is VALID [2020-07-28 21:47:27,342 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 21:47:27,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92332204] [2020-07-28 21:47:27,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:27,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:27,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393480322] [2020-07-28 21:47:27,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:27,343 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:27,343 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:47:27,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:27,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:47:27,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:27,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:47:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:27,360 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-07-28 21:47:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,538 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-07-28 21:47:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:47:27,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:27,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2020-07-28 21:47:27,633 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:27,635 INFO L225 Difference]: With dead ends: 111 [2020-07-28 21:47:27,635 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 21:47:27,635 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 21:47:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 21:47:27,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-28 21:47:27,656 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:27,656 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:27,656 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:27,657 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,660 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:27,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:27,661 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:27,661 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:27,661 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:27,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,665 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:27,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:27,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:27,666 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:27,666 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 21:47:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-07-28 21:47:27,669 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-07-28 21:47:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:27,669 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-07-28 21:47:27,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:47:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:27,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:47:27,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:27,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:27,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:47:27,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-07-28 21:47:27,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:27,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130432174] [2020-07-28 21:47:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:27,765 INFO L280 TraceCheckUtils]: 0: Hoare triple {3652#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,766 INFO L280 TraceCheckUtils]: 1: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,767 INFO L280 TraceCheckUtils]: 2: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,768 INFO L280 TraceCheckUtils]: 3: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,769 INFO L280 TraceCheckUtils]: 4: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,769 INFO L280 TraceCheckUtils]: 5: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,770 INFO L280 TraceCheckUtils]: 6: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,771 INFO L280 TraceCheckUtils]: 7: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:27,772 INFO L280 TraceCheckUtils]: 8: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:27,773 INFO L280 TraceCheckUtils]: 9: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) 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_9, 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] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:27,773 INFO L280 TraceCheckUtils]: 10: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:27,775 INFO L280 TraceCheckUtils]: 11: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3656#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:47:27,776 INFO L280 TraceCheckUtils]: 12: Hoare triple {3656#(<= ~__unbuffered_cnt~0 2)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:27,777 INFO L280 TraceCheckUtils]: 13: Hoare triple {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3653#false} is VALID [2020-07-28 21:47:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:47:27,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130432174] [2020-07-28 21:47:27,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:27,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:47:27,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702626903] [2020-07-28 21:47:27,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:27,780 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:27,780 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:47:27,799 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:27,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:47:27,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:27,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:47:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:47:27,800 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-07-28 21:47:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:27,988 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-07-28 21:47:27,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:47:27,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:27,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:27,992 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2020-07-28 21:47:28,053 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 21:47:28,054 INFO L225 Difference]: With dead ends: 75 [2020-07-28 21:47:28,054 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 21:47:28,055 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 21:47:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 21:47:28,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-28 21:47:28,074 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:28,075 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:28,075 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:28,075 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:28,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,078 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:28,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,078 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,079 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:28,079 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,082 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:28,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,082 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,083 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:28,083 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-28 21:47:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-07-28 21:47:28,092 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-07-28 21:47:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:28,093 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-07-28 21:47:28,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:47:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:28,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:28,094 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:28,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:28,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:47:28,094 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:28,094 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-07-28 21:47:28,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:28,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949423657] [2020-07-28 21:47:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:28,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {4001#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4001#true} is VALID [2020-07-28 21:47:28,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {4001#true} [165] L774-->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] {4001#true} is VALID [2020-07-28 21:47:28,188 INFO L280 TraceCheckUtils]: 2: Hoare triple {4001#true} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4001#true} is VALID [2020-07-28 21:47:28,188 INFO L280 TraceCheckUtils]: 3: Hoare triple {4001#true} [167] L776-->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] {4001#true} is VALID [2020-07-28 21:47:28,189 INFO L280 TraceCheckUtils]: 4: Hoare triple {4001#true} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {4001#true} is VALID [2020-07-28 21:47:28,189 INFO L280 TraceCheckUtils]: 5: Hoare triple {4001#true} [169] L778-->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] {4001#true} is VALID [2020-07-28 21:47:28,190 INFO L280 TraceCheckUtils]: 6: Hoare triple {4001#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4001#true} is VALID [2020-07-28 21:47:28,190 INFO L280 TraceCheckUtils]: 7: Hoare triple {4001#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4001#true} is VALID [2020-07-28 21:47:28,190 INFO L280 TraceCheckUtils]: 8: Hoare triple {4001#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4001#true} is VALID [2020-07-28 21:47:28,192 INFO L280 TraceCheckUtils]: 9: Hoare triple {4001#true} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) 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_9, 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] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:28,193 INFO L280 TraceCheckUtils]: 10: Hoare triple {4003#(= 2 ~y~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:28,194 INFO L280 TraceCheckUtils]: 11: Hoare triple {4003#(= 2 ~y~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:28,195 INFO L280 TraceCheckUtils]: 12: Hoare triple {4003#(= 2 ~y~0)} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:28,195 INFO L280 TraceCheckUtils]: 13: Hoare triple {4003#(= 2 ~y~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:28,196 INFO L280 TraceCheckUtils]: 14: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:28,197 INFO L280 TraceCheckUtils]: 15: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} 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_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:28,198 INFO L280 TraceCheckUtils]: 16: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4002#false} is VALID [2020-07-28 21:47:28,198 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 21:47:28,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949423657] [2020-07-28 21:47:28,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:28,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:28,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566729293] [2020-07-28 21:47:28,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:28,200 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:28,200 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:28,228 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:28,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:28,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:28,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:28,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:28,229 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-07-28 21:47:28,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,326 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-07-28 21:47:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:28,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:28,328 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 29 transitions. [2020-07-28 21:47:28,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:28,360 INFO L225 Difference]: With dead ends: 85 [2020-07-28 21:47:28,360 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 21:47:28,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 21:47:28,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,368 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,369 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,370 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,371 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,372 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,373 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,374 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,375 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-07-28 21:47:28,375 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:28,376 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:28,376 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:28,376 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,378 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:28,378 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:28,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,379 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,379 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:28,379 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,380 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:28,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,381 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:28,382 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-28 21:47:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-07-28 21:47:28,383 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-07-28 21:47:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:28,383 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-07-28 21:47:28,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:28,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:28,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:28,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:47:28,385 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:28,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-07-28 21:47:28,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:28,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047076771] [2020-07-28 21:47:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:28,427 INFO L280 TraceCheckUtils]: 0: Hoare triple {4287#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= 0 v_~__unbuffered_p1_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2607~0.offset_17|) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| 4)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2607~0.base_21|) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21| 1)) (= 0 v_~x~0_22) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2607~0.base_21|) |v_ULTIMATE.start_main_~#t2607~0.offset_17| 0)) |v_#memory_int_23|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2607~0.base_21|)) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_16|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_14|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_16|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2607~0.offset=|v_ULTIMATE.start_main_~#t2607~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2607~0.base=|v_ULTIMATE.start_main_~#t2607~0.base_21|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_14|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2609~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2607~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2607~0.base, ULTIMATE.start_main_~#t2609~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4287#true} is VALID [2020-07-28 21:47:28,428 INFO L280 TraceCheckUtils]: 1: Hoare triple {4287#true} [165] L774-->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] {4287#true} is VALID [2020-07-28 21:47:28,429 INFO L280 TraceCheckUtils]: 2: Hoare triple {4287#true} [205] L774-1-->L776: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2608~0.base_10|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10| 1) |v_#valid_33|) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2608~0.base_10|) |v_ULTIMATE.start_main_~#t2608~0.offset_9| 1))) (= |v_ULTIMATE.start_main_~#t2608~0.offset_9| 0) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2608~0.base_10|)) (not (= 0 |v_ULTIMATE.start_main_~#t2608~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2608~0.base=|v_ULTIMATE.start_main_~#t2608~0.base_10|, ULTIMATE.start_main_~#t2608~0.offset=|v_ULTIMATE.start_main_~#t2608~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2608~0.base, ULTIMATE.start_main_~#t2608~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4287#true} is VALID [2020-07-28 21:47:28,429 INFO L280 TraceCheckUtils]: 3: Hoare triple {4287#true} [167] L776-->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] {4287#true} is VALID [2020-07-28 21:47:28,429 INFO L280 TraceCheckUtils]: 4: Hoare triple {4287#true} [211] L776-1-->L778: Formula: (and (not (= |v_ULTIMATE.start_main_~#t2609~0.base_13| 0)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2609~0.base_13|) |v_ULTIMATE.start_main_~#t2609~0.offset_11| 2)) |v_#memory_int_17|) (= 0 |v_ULTIMATE.start_main_~#t2609~0.offset_11|) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2609~0.base_13| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2609~0.base_13| 4)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2609~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2609~0.offset=|v_ULTIMATE.start_main_~#t2609~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, ULTIMATE.start_main_~#t2609~0.base=|v_ULTIMATE.start_main_~#t2609~0.base_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2609~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2609~0.base, #length] {4287#true} is VALID [2020-07-28 21:47:28,429 INFO L280 TraceCheckUtils]: 5: Hoare triple {4287#true} [169] L778-->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] {4287#true} is VALID [2020-07-28 21:47:28,430 INFO L280 TraceCheckUtils]: 6: Hoare triple {4287#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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|} 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, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4287#true} is VALID [2020-07-28 21:47:28,430 INFO L280 TraceCheckUtils]: 7: Hoare triple {4287#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4287#true} is VALID [2020-07-28 21:47:28,431 INFO L280 TraceCheckUtils]: 8: Hoare triple {4287#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4287#true} is VALID [2020-07-28 21:47:28,432 INFO L280 TraceCheckUtils]: 9: Hoare triple {4287#true} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:28,432 INFO L280 TraceCheckUtils]: 10: Hoare triple {4289#(= 1 ~x~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:28,433 INFO L280 TraceCheckUtils]: 11: Hoare triple {4289#(= 1 ~x~0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) 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_9, 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] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:28,434 INFO L280 TraceCheckUtils]: 12: Hoare triple {4289#(= 1 ~x~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:28,435 INFO L280 TraceCheckUtils]: 13: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:28,435 INFO L280 TraceCheckUtils]: 14: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:28,436 INFO L280 TraceCheckUtils]: 15: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:28,437 INFO L280 TraceCheckUtils]: 16: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4288#false} is VALID [2020-07-28 21:47:28,438 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 21:47:28,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047076771] [2020-07-28 21:47:28,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:28,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:28,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108937828] [2020-07-28 21:47:28,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:28,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:28,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:28,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:28,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:28,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:28,459 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-07-28 21:47:28,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,521 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2020-07-28 21:47:28,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:28,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:28,523 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 25 transitions. [2020-07-28 21:47:28,550 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:28,550 INFO L225 Difference]: With dead ends: 47 [2020-07-28 21:47:28,550 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:47:28,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:47:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:47:28,552 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:28,552 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:28,552 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:28,553 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,553 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:28,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:28,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,553 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,554 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:28,554 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:28,554 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:28,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:28,554 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:28,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:47:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:47:28,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:47:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:28,555 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:47:28,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:28,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:28,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:47:28,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:47:28 BasicIcfg [2020-07-28 21:47:28,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:47:28,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:47:28,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:47:28,560 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:47:28,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:22" (3/4) ... [2020-07-28 21:47:28,564 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:47:28,569 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:47:28,570 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:47:28,570 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:47:28,575 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:47:28,575 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:47:28,575 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:47:28,623 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:47:28,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:47:28,625 INFO L168 Benchmark]: Toolchain (without parser) took 7330.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 261.6 MB). Free memory was 957.5 MB in the beginning and 1.2 GB in the end (delta: -234.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:28,626 INFO L168 Benchmark]: CDTParser took 0.98 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 21:47:28,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 958.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -80.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:28,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:47:28,627 INFO L168 Benchmark]: Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:47:28,628 INFO L168 Benchmark]: RCFGBuilder took 589.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:28,629 INFO L168 Benchmark]: TraceAbstraction took 5597.06 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 999.2 MB in the beginning and 1.2 GB in the end (delta: -195.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:47:28,629 INFO L168 Benchmark]: Witness Printer took 62.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:28,633 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 0.98 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 958.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -80.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 589.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5597.06 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 182.5 MB). Free memory was 999.2 MB in the beginning and 1.2 GB in the end (delta: -195.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 62.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 140 SDtfs, 119 SDslu, 172 SDs, 0 SdLazy, 105 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...