./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfbe6044393a37aae0dec5398200bb494ff893ab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:44:24,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:44:24,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:44:24,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:44:24,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:44:24,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:44:24,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:44:24,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:44:24,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:44:24,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:44:24,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:44:24,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:44:24,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:44:24,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:44:24,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:44:24,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:44:24,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:44:24,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:44:24,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:44:24,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:44:24,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:44:24,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:44:24,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:44:24,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:44:24,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:44:24,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:44:24,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:44:24,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:44:24,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:44:24,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:44:24,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:44:24,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:44:24,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:44:24,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:44:24,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:44:24,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:44:24,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:44:24,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:44:24,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:44:24,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:44:24,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:44:24,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:44:24,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:44:24,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:44:24,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:44:24,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:44:24,178 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:44:24,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:44:24,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:44:24,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:44:24,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:44:24,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:44:24,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:44:24,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:44:24,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:44:24,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:44:24,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:44:24,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:44:24,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:44:24,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:44:24,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:44:24,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:44:24,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:44:24,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:44:24,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:44:24,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:44:24,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:44:24,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:44:24,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:44:24,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:44:24,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:44:24,188 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 -> cfbe6044393a37aae0dec5398200bb494ff893ab [2020-07-28 21:44:24,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:44:24,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:44:24,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:44:24,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:44:24,499 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:44:24,500 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2020-07-28 21:44:24,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f8f8e05/8dafa07a61834b89acf77b5d6bfefe46/FLAG474670221 [2020-07-28 21:44:25,127 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:44:25,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2020-07-28 21:44:25,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f8f8e05/8dafa07a61834b89acf77b5d6bfefe46/FLAG474670221 [2020-07-28 21:44:25,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f8f8e05/8dafa07a61834b89acf77b5d6bfefe46 [2020-07-28 21:44:25,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:44:25,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:44:25,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:44:25,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:44:25,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:44:25,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:44:25" (1/1) ... [2020-07-28 21:44:25,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:25, skipping insertion in model container [2020-07-28 21:44:25,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:44:25" (1/1) ... [2020-07-28 21:44:25,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:44:25,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:44:25,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:44:25,960 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:44:26,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:44:26,176 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:44:26,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26 WrapperNode [2020-07-28 21:44:26,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:44:26,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:44:26,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:44:26,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:44:26,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:44:26,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:44:26,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:44:26,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:44:26,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (1/1) ... [2020-07-28 21:44:26,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:44:26,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:44:26,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:44:26,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:44:26,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (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 21:44:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:44:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:44:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:44:26,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:44:26,380 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:44:26,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:44:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:44:26,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:44:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:44:26,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:44:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:44:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:44:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:44:26,385 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 21:44:26,910 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:44:26,911 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:44:26,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:26 BoogieIcfgContainer [2020-07-28 21:44:26,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:44:26,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:44:26,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:44:26,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:44:26,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:44:25" (1/3) ... [2020-07-28 21:44:26,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56001e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:44:26, skipping insertion in model container [2020-07-28 21:44:26,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:26" (2/3) ... [2020-07-28 21:44:26,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56001e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:44:26, skipping insertion in model container [2020-07-28 21:44:26,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:26" (3/3) ... [2020-07-28 21:44:26,925 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-07-28 21:44:26,935 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:44:26,936 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:44:26,943 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:44:26,944 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:44:26,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,990 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,990 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:26,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:27,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:27,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:27,004 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:27,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:27,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:44:27,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:44:27,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:44:27,044 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:44:27,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:44:27,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:44:27,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:44:27,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:44:27,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:44:27,060 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:27,063 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:27,106 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:44:27,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:44:27,112 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:44:27,115 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:27,136 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:44:27,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:44:27,138 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:44:27,140 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:44:27,141 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:44:29,337 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-07-28 21:44:29,338 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-07-28 21:44:29,344 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-07-28 21:44:29,392 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-07-28 21:44:29,394 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-07-28 21:44:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:44:29,423 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:29,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:29,426 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-07-28 21:44:29,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:29,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484431500] [2020-07-28 21:44:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:29,737 INFO L280 TraceCheckUtils]: 0: Hoare triple {803#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {803#true} is VALID [2020-07-28 21:44:29,738 INFO L280 TraceCheckUtils]: 1: Hoare triple {803#true} [161] L764-->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] {803#true} is VALID [2020-07-28 21:44:29,738 INFO L280 TraceCheckUtils]: 2: Hoare triple {803#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {803#true} is VALID [2020-07-28 21:44:29,739 INFO L280 TraceCheckUtils]: 3: Hoare triple {803#true} [163] L766-->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] {803#true} is VALID [2020-07-28 21:44:29,739 INFO L280 TraceCheckUtils]: 4: Hoare triple {803#true} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {803#true} is VALID [2020-07-28 21:44:29,740 INFO L280 TraceCheckUtils]: 5: Hoare triple {803#true} [165] L768-->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] {803#true} is VALID [2020-07-28 21:44:29,741 INFO L280 TraceCheckUtils]: 6: Hoare triple {803#true} [215] L768-1-->L7: Formula: false InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_12, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_10|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {804#false} is VALID [2020-07-28 21:44:29,742 INFO L280 TraceCheckUtils]: 7: Hoare triple {804#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {804#false} is VALID [2020-07-28 21:44:29,744 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 21:44:29,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484431500] [2020-07-28 21:44:29,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:29,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:44:29,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581281180] [2020-07-28 21:44:29,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:44:29,755 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:29,759 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:44:29,775 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 21:44:29,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:44:29,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:29,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:44:29,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:44:29,790 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-07-28 21:44:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:29,908 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-07-28 21:44:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:44:29,909 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:44:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:44:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:44:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:44:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:44:29,916 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 20 transitions. [2020-07-28 21:44:29,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:30,022 INFO L225 Difference]: With dead ends: 362 [2020-07-28 21:44:30,022 INFO L226 Difference]: Without dead ends: 298 [2020-07-28 21:44:30,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:44:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-28 21:44:30,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-07-28 21:44:30,199 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:30,199 INFO L82 GeneralOperation]: Start isEquivalent. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:30,200 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:30,200 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,239 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:44:30,239 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:30,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:30,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:30,244 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:30,244 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,274 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:44:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:30,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:30,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:30,278 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:30,278 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-28 21:44:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-07-28 21:44:30,302 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-07-28 21:44:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:30,303 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-07-28 21:44:30,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:44:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:44:30,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:30,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:30,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:44:30,305 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:30,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-07-28 21:44:30,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:30,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956540999] [2020-07-28 21:44:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:30,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {2361#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,455 INFO L280 TraceCheckUtils]: 2: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,456 INFO L280 TraceCheckUtils]: 3: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,457 INFO L280 TraceCheckUtils]: 4: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,458 INFO L280 TraceCheckUtils]: 5: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,459 INFO L280 TraceCheckUtils]: 6: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2362#false} is VALID [2020-07-28 21:44:30,459 INFO L280 TraceCheckUtils]: 7: Hoare triple {2362#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2362#false} is VALID [2020-07-28 21:44:30,459 INFO L280 TraceCheckUtils]: 8: Hoare triple {2362#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {2362#false} is VALID [2020-07-28 21:44:30,460 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 21:44:30,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956540999] [2020-07-28 21:44:30,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:30,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:44:30,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822402987] [2020-07-28 21:44:30,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:44:30,463 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:30,463 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:44:30,476 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:30,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:44:30,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:30,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:44:30,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:44:30,478 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-07-28 21:44:30,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,543 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:44:30,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:44:30,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:44:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:44:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:44:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:44:30,546 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2020-07-28 21:44:30,589 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:30,594 INFO L225 Difference]: With dead ends: 217 [2020-07-28 21:44:30,594 INFO L226 Difference]: Without dead ends: 217 [2020-07-28 21:44:30,595 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 21:44:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-28 21:44:30,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,657 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,658 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,659 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,660 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,661 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:30,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-07-28 21:44:30,662 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:30,662 INFO L82 GeneralOperation]: Start isEquivalent. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:30,662 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:30,662 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,673 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:30,674 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:30,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:30,674 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:30,675 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:30,675 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:30,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,686 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:30,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:30,687 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:30,687 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:30,687 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-28 21:44:30,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-07-28 21:44:30,698 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-07-28 21:44:30,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:30,699 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-07-28 21:44:30,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:44:30,699 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:44:30,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:30,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:30,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:44:30,700 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:30,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:30,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-07-28 21:44:30,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:30,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317848076] [2020-07-28 21:44:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:30,798 INFO L280 TraceCheckUtils]: 0: Hoare triple {3451#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,799 INFO L280 TraceCheckUtils]: 2: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,800 INFO L280 TraceCheckUtils]: 3: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,800 INFO L280 TraceCheckUtils]: 4: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,801 INFO L280 TraceCheckUtils]: 5: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,802 INFO L280 TraceCheckUtils]: 6: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= 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_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,802 INFO L280 TraceCheckUtils]: 7: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:30,803 INFO L280 TraceCheckUtils]: 8: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:30,804 INFO L280 TraceCheckUtils]: 9: Hoare triple {3454#(<= ~__unbuffered_cnt~0 1)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3452#false} is VALID [2020-07-28 21:44:30,804 INFO L280 TraceCheckUtils]: 10: Hoare triple {3452#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3452#false} is VALID [2020-07-28 21:44:30,805 INFO L280 TraceCheckUtils]: 11: Hoare triple {3452#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {3452#false} is VALID [2020-07-28 21:44:30,806 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 21:44:30,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317848076] [2020-07-28 21:44:30,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:30,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:30,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279833836] [2020-07-28 21:44:30,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:44:30,807 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:30,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:30,827 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 21:44:30,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:30,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:30,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:30,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:30,828 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-07-28 21:44:30,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:30,933 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:30,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:44:30,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:30,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:30,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:44:30,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:44:30,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 43 transitions. [2020-07-28 21:44:30,991 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:30,994 INFO L225 Difference]: With dead ends: 136 [2020-07-28 21:44:30,994 INFO L226 Difference]: Without dead ends: 136 [2020-07-28 21:44:30,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-28 21:44:31,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-28 21:44:31,035 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:31,036 INFO L82 GeneralOperation]: Start isEquivalent. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:31,036 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:31,036 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,042 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:31,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,043 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,043 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:31,043 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,051 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:31,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,052 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,052 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:31,052 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:31,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-28 21:44:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-07-28 21:44:31,058 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-07-28 21:44:31,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:31,059 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-07-28 21:44:31,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:44:31,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:31,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:31,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:44:31,060 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:31,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-07-28 21:44:31,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:31,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509397983] [2020-07-28 21:44:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:31,124 INFO L280 TraceCheckUtils]: 0: Hoare triple {4137#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,125 INFO L280 TraceCheckUtils]: 1: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,126 INFO L280 TraceCheckUtils]: 2: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,127 INFO L280 TraceCheckUtils]: 3: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,128 INFO L280 TraceCheckUtils]: 4: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,129 INFO L280 TraceCheckUtils]: 5: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,129 INFO L280 TraceCheckUtils]: 6: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= 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_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,130 INFO L280 TraceCheckUtils]: 7: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,131 INFO L280 TraceCheckUtils]: 8: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:31,132 INFO L280 TraceCheckUtils]: 9: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4140#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:31,133 INFO L280 TraceCheckUtils]: 10: Hoare triple {4140#(<= ~__unbuffered_cnt~0 1)} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {4140#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:31,134 INFO L280 TraceCheckUtils]: 11: Hoare triple {4140#(<= ~__unbuffered_cnt~0 1)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4141#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:44:31,135 INFO L280 TraceCheckUtils]: 12: Hoare triple {4141#(<= ~__unbuffered_cnt~0 2)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4138#false} is VALID [2020-07-28 21:44:31,135 INFO L280 TraceCheckUtils]: 13: Hoare triple {4138#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4138#false} is VALID [2020-07-28 21:44:31,135 INFO L280 TraceCheckUtils]: 14: Hoare triple {4138#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4138#false} is VALID [2020-07-28 21:44:31,136 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 21:44:31,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509397983] [2020-07-28 21:44:31,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:31,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:44:31,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055159410] [2020-07-28 21:44:31,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:44:31,138 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:31,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:44:31,158 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:31,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:44:31,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:31,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:44:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:31,159 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-07-28 21:44:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,268 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:44:31,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:44:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:44:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:44:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:44:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:44:31,271 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:44:31,336 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:31,339 INFO L225 Difference]: With dead ends: 109 [2020-07-28 21:44:31,339 INFO L226 Difference]: Without dead ends: 109 [2020-07-28 21:44:31,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-28 21:44:31,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,365 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,366 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,367 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-28 21:44:31,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:31,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:31,368 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:31,368 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,388 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:31,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,388 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,389 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:31,389 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,394 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:31,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,395 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,395 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:31,395 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:31,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-28 21:44:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-07-28 21:44:31,398 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-07-28 21:44:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:31,398 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-07-28 21:44:31,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:44:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:31,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:31,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:31,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:44:31,399 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:31,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:31,400 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-07-28 21:44:31,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:31,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208361984] [2020-07-28 21:44:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:31,528 INFO L280 TraceCheckUtils]: 0: Hoare triple {4689#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {4689#true} is VALID [2020-07-28 21:44:31,529 INFO L280 TraceCheckUtils]: 1: Hoare triple {4689#true} [161] L764-->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] {4689#true} is VALID [2020-07-28 21:44:31,529 INFO L280 TraceCheckUtils]: 2: Hoare triple {4689#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4689#true} is VALID [2020-07-28 21:44:31,529 INFO L280 TraceCheckUtils]: 3: Hoare triple {4689#true} [163] L766-->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] {4689#true} is VALID [2020-07-28 21:44:31,530 INFO L280 TraceCheckUtils]: 4: Hoare triple {4689#true} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4689#true} is VALID [2020-07-28 21:44:31,530 INFO L280 TraceCheckUtils]: 5: Hoare triple {4689#true} [165] L768-->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] {4689#true} is VALID [2020-07-28 21:44:31,530 INFO L280 TraceCheckUtils]: 6: Hoare triple {4689#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= 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_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4689#true} is VALID [2020-07-28 21:44:31,531 INFO L280 TraceCheckUtils]: 7: Hoare triple {4689#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4689#true} is VALID [2020-07-28 21:44:31,531 INFO L280 TraceCheckUtils]: 8: Hoare triple {4689#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4689#true} is VALID [2020-07-28 21:44:31,531 INFO L280 TraceCheckUtils]: 9: Hoare triple {4689#true} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4689#true} is VALID [2020-07-28 21:44:31,531 INFO L280 TraceCheckUtils]: 10: Hoare triple {4689#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {4689#true} is VALID [2020-07-28 21:44:31,532 INFO L280 TraceCheckUtils]: 11: Hoare triple {4689#true} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4689#true} is VALID [2020-07-28 21:44:31,532 INFO L280 TraceCheckUtils]: 12: Hoare triple {4689#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4689#true} is VALID [2020-07-28 21:44:31,533 INFO L280 TraceCheckUtils]: 13: Hoare triple {4689#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:31,534 INFO L280 TraceCheckUtils]: 14: Hoare triple {4691#(= 1 ~y~0)} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:31,534 INFO L280 TraceCheckUtils]: 15: Hoare triple {4691#(= 1 ~y~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:31,535 INFO L280 TraceCheckUtils]: 16: Hoare triple {4691#(= 1 ~y~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4692#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:31,537 INFO L280 TraceCheckUtils]: 17: Hoare triple {4692#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4690#false} is VALID [2020-07-28 21:44:31,537 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 21:44:31,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208361984] [2020-07-28 21:44:31,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:31,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:31,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891271663] [2020-07-28 21:44:31,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:31,539 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:31,539 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:31,560 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:31,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:31,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:31,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:31,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:31,561 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-07-28 21:44:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,647 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-07-28 21:44:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:31,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:44:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:44:31,649 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:44:31,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:31,702 INFO L225 Difference]: With dead ends: 135 [2020-07-28 21:44:31,703 INFO L226 Difference]: Without dead ends: 85 [2020-07-28 21:44:31,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-28 21:44:31,705 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-28 21:44:31,727 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:31,727 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:31,727 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:31,727 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:31,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,732 INFO L93 Difference]: Finished difference Result 85 states and 177 transitions. [2020-07-28 21:44:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:31,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,733 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,733 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:31,733 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,736 INFO L93 Difference]: Finished difference Result 85 states and 177 transitions. [2020-07-28 21:44:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:31,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:31,737 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:31,737 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:31,737 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 21:44:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-07-28 21:44:31,740 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-07-28 21:44:31,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:31,740 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-07-28 21:44:31,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:31,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:31,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:31,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:44:31,742 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:31,742 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-07-28 21:44:31,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:31,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116535246] [2020-07-28 21:44:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:31,846 INFO L280 TraceCheckUtils]: 0: Hoare triple {5172#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {5172#true} is VALID [2020-07-28 21:44:31,846 INFO L280 TraceCheckUtils]: 1: Hoare triple {5172#true} [161] L764-->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] {5172#true} is VALID [2020-07-28 21:44:31,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {5172#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5172#true} is VALID [2020-07-28 21:44:31,847 INFO L280 TraceCheckUtils]: 3: Hoare triple {5172#true} [163] L766-->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] {5172#true} is VALID [2020-07-28 21:44:31,848 INFO L280 TraceCheckUtils]: 4: Hoare triple {5172#true} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5172#true} is VALID [2020-07-28 21:44:31,848 INFO L280 TraceCheckUtils]: 5: Hoare triple {5172#true} [165] L768-->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] {5172#true} is VALID [2020-07-28 21:44:31,848 INFO L280 TraceCheckUtils]: 6: Hoare triple {5172#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5172#true} is VALID [2020-07-28 21:44:31,849 INFO L280 TraceCheckUtils]: 7: Hoare triple {5172#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5172#true} is VALID [2020-07-28 21:44:31,849 INFO L280 TraceCheckUtils]: 8: Hoare triple {5172#true} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5172#true} is VALID [2020-07-28 21:44:31,849 INFO L280 TraceCheckUtils]: 9: Hoare triple {5172#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5172#true} is VALID [2020-07-28 21:44:31,850 INFO L280 TraceCheckUtils]: 10: Hoare triple {5172#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5172#true} is VALID [2020-07-28 21:44:31,850 INFO L280 TraceCheckUtils]: 11: Hoare triple {5172#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= 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_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {5172#true} is VALID [2020-07-28 21:44:31,851 INFO L280 TraceCheckUtils]: 12: Hoare triple {5172#true} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5172#true} is VALID [2020-07-28 21:44:31,852 INFO L280 TraceCheckUtils]: 13: Hoare triple {5172#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:31,853 INFO L280 TraceCheckUtils]: 14: Hoare triple {5174#(= 1 ~z~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:31,855 INFO L280 TraceCheckUtils]: 15: Hoare triple {5174#(= 1 ~z~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:31,856 INFO L280 TraceCheckUtils]: 16: Hoare triple {5174#(= 1 ~z~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5175#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:31,858 INFO L280 TraceCheckUtils]: 17: Hoare triple {5175#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5173#false} is VALID [2020-07-28 21:44:31,859 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 21:44:31,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116535246] [2020-07-28 21:44:31,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:31,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:31,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732238661] [2020-07-28 21:44:31,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:31,860 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:31,861 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:31,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:31,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:31,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:31,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:31,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:31,891 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-07-28 21:44:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:31,964 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-07-28 21:44:31,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:31,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-07-28 21:44:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-07-28 21:44:31,966 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 26 transitions. [2020-07-28 21:44:32,001 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:32,002 INFO L225 Difference]: With dead ends: 99 [2020-07-28 21:44:32,002 INFO L226 Difference]: Without dead ends: 37 [2020-07-28 21:44:32,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-28 21:44:32,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:32,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-28 21:44:32,013 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:32,013 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:32,013 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:32,013 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:32,015 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2020-07-28 21:44:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:32,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:32,015 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:32,016 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:32,016 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:32,017 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2020-07-28 21:44:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:32,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:32,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:32,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:32,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-28 21:44:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-07-28 21:44:32,019 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-07-28 21:44:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:32,020 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-07-28 21:44:32,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:32,020 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:32,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:32,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:44:32,021 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:32,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-07-28 21:44:32,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:32,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772575820] [2020-07-28 21:44:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:32,105 INFO L280 TraceCheckUtils]: 0: Hoare triple {5427#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2510~0.base_18|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= 0 |v_ULTIMATE.start_main_~#t2510~0.offset_14|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2510~0.base_18| 4) |v_#length_21|) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2510~0.base_18|) |v_ULTIMATE.start_main_~#t2510~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2510~0.base_18|)) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_15|, ULTIMATE.start_main_~#t2510~0.offset=|v_ULTIMATE.start_main_~#t2510~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ULTIMATE.start_main_~#t2510~0.base=|v_ULTIMATE.start_main_~#t2510~0.base_18|, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2510~0.offset, ULTIMATE.start_main_~#t2512~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2510~0.base, ~x~0] {5427#true} is VALID [2020-07-28 21:44:32,107 INFO L280 TraceCheckUtils]: 1: Hoare triple {5427#true} [161] L764-->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] {5427#true} is VALID [2020-07-28 21:44:32,107 INFO L280 TraceCheckUtils]: 2: Hoare triple {5427#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2511~0.base_11| 4)) (= |v_ULTIMATE.start_main_~#t2511~0.offset_10| 0) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2511~0.base_11|) |v_ULTIMATE.start_main_~#t2511~0.offset_10| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2511~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2511~0.base_11|)) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2511~0.base_11|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2511~0.base=|v_ULTIMATE.start_main_~#t2511~0.base_11|, ULTIMATE.start_main_~#t2511~0.offset=|v_ULTIMATE.start_main_~#t2511~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2511~0.base, ULTIMATE.start_main_~#t2511~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5427#true} is VALID [2020-07-28 21:44:32,108 INFO L280 TraceCheckUtils]: 3: Hoare triple {5427#true} [163] L766-->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] {5427#true} is VALID [2020-07-28 21:44:32,108 INFO L280 TraceCheckUtils]: 4: Hoare triple {5427#true} [197] L766-1-->L768: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13|)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2512~0.base_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2512~0.base_13|) |v_ULTIMATE.start_main_~#t2512~0.offset_11| 2)) |v_#memory_int_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2512~0.base_13| 4)) (= |v_ULTIMATE.start_main_~#t2512~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2512~0.base_13| 1) |v_#valid_33|) (not (= 0 |v_ULTIMATE.start_main_~#t2512~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2512~0.base=|v_ULTIMATE.start_main_~#t2512~0.base_13|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2512~0.offset=|v_ULTIMATE.start_main_~#t2512~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2512~0.base, ULTIMATE.start_main_~#t2512~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5427#true} is VALID [2020-07-28 21:44:32,109 INFO L280 TraceCheckUtils]: 5: Hoare triple {5427#true} [165] L768-->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] {5427#true} is VALID [2020-07-28 21:44:32,109 INFO L280 TraceCheckUtils]: 6: Hoare triple {5427#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5427#true} is VALID [2020-07-28 21:44:32,109 INFO L280 TraceCheckUtils]: 7: Hoare triple {5427#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5427#true} is VALID [2020-07-28 21:44:32,110 INFO L280 TraceCheckUtils]: 8: Hoare triple {5427#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= 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_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {5427#true} is VALID [2020-07-28 21:44:32,110 INFO L280 TraceCheckUtils]: 9: Hoare triple {5427#true} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5427#true} is VALID [2020-07-28 21:44:32,111 INFO L280 TraceCheckUtils]: 10: Hoare triple {5427#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {5427#true} is VALID [2020-07-28 21:44:32,111 INFO L280 TraceCheckUtils]: 11: Hoare triple {5427#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5427#true} is VALID [2020-07-28 21:44:32,113 INFO L280 TraceCheckUtils]: 12: Hoare triple {5427#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:32,116 INFO L280 TraceCheckUtils]: 13: Hoare triple {5429#(= 1 ~x~0)} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:32,117 INFO L280 TraceCheckUtils]: 14: Hoare triple {5429#(= 1 ~x~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:32,118 INFO L280 TraceCheckUtils]: 15: Hoare triple {5429#(= 1 ~x~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:32,120 INFO L280 TraceCheckUtils]: 16: Hoare triple {5429#(= 1 ~x~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5430#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:32,122 INFO L280 TraceCheckUtils]: 17: Hoare triple {5430#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5428#false} is VALID [2020-07-28 21:44:32,123 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 21:44:32,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772575820] [2020-07-28 21:44:32,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:32,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:32,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841462096] [2020-07-28 21:44:32,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:32,142 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:32,142 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:32,161 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:32,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:32,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:32,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:32,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:32,162 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-07-28 21:44:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:32,215 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:44:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:32,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:44:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:44:32,218 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2020-07-28 21:44:32,241 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:32,241 INFO L225 Difference]: With dead ends: 36 [2020-07-28 21:44:32,241 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:44:32,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:44:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:44:32,242 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:32,243 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:32,243 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:32,243 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:32,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:32,244 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:44:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:32,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:32,244 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:32,244 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:32,244 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:32,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:32,245 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:44:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:32,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:32,246 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:32,246 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:32,246 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:44:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:44:32,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 21:44:32,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:32,247 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:44:32,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:32,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:32,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:44:32,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:44:32 BasicIcfg [2020-07-28 21:44:32,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:44:32,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:44:32,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:44:32,253 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:44:32,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:26" (3/4) ... [2020-07-28 21:44:32,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:44:32,264 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:44:32,265 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:44:32,265 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:44:32,272 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:44:32,272 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:44:32,272 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:44:32,332 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:44:32,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:44:32,335 INFO L168 Benchmark]: Toolchain (without parser) took 6923.06 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.3 MB). Free memory was 950.9 MB in the beginning and 1.3 GB in the end (delta: -326.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:32,339 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:32,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.9 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:32,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:32,352 INFO L168 Benchmark]: Boogie Preprocessor took 30.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:32,353 INFO L168 Benchmark]: RCFGBuilder took 615.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:32,354 INFO L168 Benchmark]: TraceAbstraction took 5336.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:32,354 INFO L168 Benchmark]: Witness Printer took 79.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:32,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 763.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.9 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 615.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5336.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 79.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 692 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 128 SDtfs, 70 SDslu, 159 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2675 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...