./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2908c7314a331def3f9fdeb8d1020e1690cb2db2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:31:37,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:31:37,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:31:37,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:31:37,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:31:37,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:31:37,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:31:37,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:31:37,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:31:37,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:31:37,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:31:37,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:31:37,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:31:37,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:31:37,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:31:37,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:31:37,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:31:37,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:31:37,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:31:37,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:31:37,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:31:37,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:31:37,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:31:37,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:31:37,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:31:37,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:31:37,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:31:37,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:31:37,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:31:37,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:31:37,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:31:37,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:31:37,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:31:37,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:31:37,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:31:37,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:31:37,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:31:37,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:31:37,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:31:37,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:31:37,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:31:37,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:31:37,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:31:37,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:31:37,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:31:37,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:31:37,238 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:31:37,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:31:37,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:31:37,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:31:37,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:31:37,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:31:37,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:31:37,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:31:37,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:31:37,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:31:37,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:31:37,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:31:37,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:31:37,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:31:37,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:31:37,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:31:37,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:31:37,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:31:37,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:31:37,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:31:37,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:31:37,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:31:37,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:31:37,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:31:37,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:31:37,246 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 -> 2908c7314a331def3f9fdeb8d1020e1690cb2db2 [2020-07-28 21:31:37,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:31:37,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:31:37,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:31:37,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:31:37,570 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:31:37,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2020-07-28 21:31:37,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9dc6196/dc7bba4da2bd406fb340051e92525672/FLAG22ded0456 [2020-07-28 21:31:38,204 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:31:38,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2020-07-28 21:31:38,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9dc6196/dc7bba4da2bd406fb340051e92525672/FLAG22ded0456 [2020-07-28 21:31:38,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9dc6196/dc7bba4da2bd406fb340051e92525672 [2020-07-28 21:31:38,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:31:38,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:31:38,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:31:38,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:31:38,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:31:38,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:31:38" (1/1) ... [2020-07-28 21:31:38,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8fe223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:38, skipping insertion in model container [2020-07-28 21:31:38,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:31:38" (1/1) ... [2020-07-28 21:31:38,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:31:38,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:31:39,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:31:39,034 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:31:39,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:31:39,207 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:31:39,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39 WrapperNode [2020-07-28 21:31:39,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:31:39,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:31:39,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:31:39,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:31:39,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:31:39,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:31:39,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:31:39,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:31:39,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (1/1) ... [2020-07-28 21:31:39,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:31:39,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:31:39,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:31:39,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:31:39,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (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 21:31:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:31:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:31:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:31:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:31:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:31:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:31:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:31:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:31:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:31:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:31:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:31:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:31:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:31:39,378 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 21:31:39,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:31:39,822 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:31:39,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:39 BoogieIcfgContainer [2020-07-28 21:31:39,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:31:39,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:31:39,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:31:39,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:31:39,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:31:38" (1/3) ... [2020-07-28 21:31:39,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f1f4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:31:39, skipping insertion in model container [2020-07-28 21:31:39,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:39" (2/3) ... [2020-07-28 21:31:39,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f1f4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:31:39, skipping insertion in model container [2020-07-28 21:31:39,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:39" (3/3) ... [2020-07-28 21:31:39,836 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-07-28 21:31:39,847 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:31:39,847 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:31:39,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:31:39,857 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:31:39,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,896 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,918 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,918 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:39,934 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:31:39,956 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:31:39,957 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:31:39,957 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:31:39,957 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:31:39,957 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:31:39,957 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:31:39,958 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:31:39,958 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:31:39,973 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:39,975 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:40,018 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:31:40,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:31:40,027 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 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:31:40,030 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:40,051 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:31:40,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:31:40,052 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 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:31:40,057 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-07-28 21:31:40,058 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:31:41,795 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-07-28 21:31:42,216 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-07-28 21:31:42,216 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-07-28 21:31:42,220 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:31:42,243 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-07-28 21:31:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-07-28 21:31:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:31:42,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:42,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:42,255 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:42,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:42,261 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-07-28 21:31:42,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:42,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136728960] [2020-07-28 21:31:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:42,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {547#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,496 INFO L280 TraceCheckUtils]: 1: Hoare triple {549#(= 0 ~y~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,497 INFO L280 TraceCheckUtils]: 2: Hoare triple {549#(= 0 ~y~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,499 INFO L280 TraceCheckUtils]: 3: Hoare triple {549#(= 0 ~y~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,500 INFO L280 TraceCheckUtils]: 4: Hoare triple {549#(= 0 ~y~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,501 INFO L280 TraceCheckUtils]: 5: Hoare triple {549#(= 0 ~y~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,502 INFO L280 TraceCheckUtils]: 6: Hoare triple {549#(= 0 ~y~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {549#(= 0 ~y~0)} is VALID [2020-07-28 21:31:42,503 INFO L280 TraceCheckUtils]: 7: Hoare triple {549#(= 0 ~y~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {548#false} is VALID [2020-07-28 21:31:42,505 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 21:31:42,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136728960] [2020-07-28 21:31:42,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:42,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:42,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430425603] [2020-07-28 21:31:42,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:31:42,518 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:42,522 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:42,545 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 21:31:42,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:42,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:42,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:42,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:42,559 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-07-28 21:31:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:42,712 INFO L93 Difference]: Finished difference Result 226 states and 626 transitions. [2020-07-28 21:31:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:42,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:31:42,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:31:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:42,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:31:42,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 28 transitions. [2020-07-28 21:31:42,760 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:42,782 INFO L225 Difference]: With dead ends: 226 [2020-07-28 21:31:42,782 INFO L226 Difference]: Without dead ends: 178 [2020-07-28 21:31:42,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-28 21:31:42,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:42,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-07-28 21:31:42,874 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:42,875 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:42,875 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:42,876 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:42,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:42,895 INFO L93 Difference]: Finished difference Result 178 states and 474 transitions. [2020-07-28 21:31:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:42,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:42,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:42,897 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:42,897 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:42,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:42,914 INFO L93 Difference]: Finished difference Result 178 states and 474 transitions. [2020-07-28 21:31:42,914 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:42,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:42,917 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:42,917 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:42,917 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-07-28 21:31:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 474 transitions. [2020-07-28 21:31:42,932 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 474 transitions. Word has length 8 [2020-07-28 21:31:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:42,933 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 474 transitions. [2020-07-28 21:31:42,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:31:42,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:42,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:42,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:31:42,935 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:42,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119474, now seen corresponding path program 1 times [2020-07-28 21:31:42,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:42,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339134118] [2020-07-28 21:31:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:43,032 INFO L280 TraceCheckUtils]: 0: Hoare triple {1490#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,033 INFO L280 TraceCheckUtils]: 1: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,034 INFO L280 TraceCheckUtils]: 2: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,035 INFO L280 TraceCheckUtils]: 3: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,036 INFO L280 TraceCheckUtils]: 4: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,036 INFO L280 TraceCheckUtils]: 5: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,037 INFO L280 TraceCheckUtils]: 6: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,038 INFO L280 TraceCheckUtils]: 7: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,039 INFO L280 TraceCheckUtils]: 8: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1491#false} is VALID [2020-07-28 21:31:43,040 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 21:31:43,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339134118] [2020-07-28 21:31:43,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:43,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:43,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243134964] [2020-07-28 21:31:43,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:31:43,043 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:43,044 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:43,058 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 21:31:43,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:43,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:43,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:43,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:43,059 INFO L87 Difference]: Start difference. First operand 178 states and 474 transitions. Second operand 3 states. [2020-07-28 21:31:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,099 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:43,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:43,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:31:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:31:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:31:43,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:31:43,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,144 INFO L225 Difference]: With dead ends: 168 [2020-07-28 21:31:43,144 INFO L226 Difference]: Without dead ends: 168 [2020-07-28 21:31:43,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-28 21:31:43,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-07-28 21:31:43,202 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:43,202 INFO L82 GeneralOperation]: Start isEquivalent. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:43,202 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:43,203 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,214 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:43,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,215 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:43,215 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,230 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:43,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:43,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:43,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-28 21:31:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 441 transitions. [2020-07-28 21:31:43,242 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 441 transitions. Word has length 9 [2020-07-28 21:31:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:43,243 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 441 transitions. [2020-07-28 21:31:43,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:31:43,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:43,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:43,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:31:43,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash 113999627, now seen corresponding path program 1 times [2020-07-28 21:31:43,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:43,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491702974] [2020-07-28 21:31:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:43,319 INFO L280 TraceCheckUtils]: 0: Hoare triple {2335#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2337#(= 0 ~y~0)} is VALID [2020-07-28 21:31:43,320 INFO L280 TraceCheckUtils]: 1: Hoare triple {2337#(= 0 ~y~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2337#(= 0 ~y~0)} is VALID [2020-07-28 21:31:43,321 INFO L280 TraceCheckUtils]: 2: Hoare triple {2337#(= 0 ~y~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,322 INFO L280 TraceCheckUtils]: 3: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,323 INFO L280 TraceCheckUtils]: 4: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,324 INFO L280 TraceCheckUtils]: 5: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,325 INFO L280 TraceCheckUtils]: 6: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,326 INFO L280 TraceCheckUtils]: 7: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,326 INFO L280 TraceCheckUtils]: 8: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {2338#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:43,327 INFO L280 TraceCheckUtils]: 9: Hoare triple {2338#(= 0 ~__unbuffered_p0_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2336#false} is VALID [2020-07-28 21:31:43,328 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 21:31:43,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491702974] [2020-07-28 21:31:43,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:43,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:43,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75392566] [2020-07-28 21:31:43,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:31:43,331 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:43,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:43,347 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:43,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:43,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:43,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:43,348 INFO L87 Difference]: Start difference. First operand 168 states and 441 transitions. Second operand 4 states. [2020-07-28 21:31:43,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,454 INFO L93 Difference]: Finished difference Result 240 states and 615 transitions. [2020-07-28 21:31:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:31:43,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:31:43,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:31:43,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:31:43,458 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:31:43,502 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,508 INFO L225 Difference]: With dead ends: 240 [2020-07-28 21:31:43,509 INFO L226 Difference]: Without dead ends: 138 [2020-07-28 21:31:43,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-28 21:31:43,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-07-28 21:31:43,556 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:43,556 INFO L82 GeneralOperation]: Start isEquivalent. First operand 138 states. Second operand 138 states. [2020-07-28 21:31:43,556 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states. Second operand 138 states. [2020-07-28 21:31:43,556 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 138 states. [2020-07-28 21:31:43,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,566 INFO L93 Difference]: Finished difference Result 138 states and 351 transitions. [2020-07-28 21:31:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-07-28 21:31:43,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,567 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,567 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states. Second operand 138 states. [2020-07-28 21:31:43,567 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 138 states. [2020-07-28 21:31:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,575 INFO L93 Difference]: Finished difference Result 138 states and 351 transitions. [2020-07-28 21:31:43,575 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-07-28 21:31:43,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,576 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,576 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:43,576 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:43,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-07-28 21:31:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 351 transitions. [2020-07-28 21:31:43,583 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 351 transitions. Word has length 10 [2020-07-28 21:31:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:43,583 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 351 transitions. [2020-07-28 21:31:43,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 351 transitions. [2020-07-28 21:31:43,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:31:43,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:43,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:43,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:31:43,585 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:43,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1925064459, now seen corresponding path program 2 times [2020-07-28 21:31:43,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:43,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735607580] [2020-07-28 21:31:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:43,689 INFO L280 TraceCheckUtils]: 0: Hoare triple {3135#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,690 INFO L280 TraceCheckUtils]: 1: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,691 INFO L280 TraceCheckUtils]: 2: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,692 INFO L280 TraceCheckUtils]: 3: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,692 INFO L280 TraceCheckUtils]: 4: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,693 INFO L280 TraceCheckUtils]: 5: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,694 INFO L280 TraceCheckUtils]: 6: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,695 INFO L280 TraceCheckUtils]: 7: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,696 INFO L280 TraceCheckUtils]: 8: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3137#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,697 INFO L280 TraceCheckUtils]: 9: Hoare triple {3137#(= 0 ~__unbuffered_p1_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3136#false} is VALID [2020-07-28 21:31:43,698 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 21:31:43,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735607580] [2020-07-28 21:31:43,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:43,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:43,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272858681] [2020-07-28 21:31:43,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:31:43,699 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:43,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:43,713 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:43,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:43,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:43,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:43,714 INFO L87 Difference]: Start difference. First operand 138 states and 351 transitions. Second operand 3 states. [2020-07-28 21:31:43,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,747 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-07-28 21:31:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:43,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:31:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:31:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:31:43,749 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:31:43,783 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,786 INFO L225 Difference]: With dead ends: 132 [2020-07-28 21:31:43,786 INFO L226 Difference]: Without dead ends: 132 [2020-07-28 21:31:43,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-28 21:31:43,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-28 21:31:43,825 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:43,825 INFO L82 GeneralOperation]: Start isEquivalent. First operand 132 states. Second operand 132 states. [2020-07-28 21:31:43,825 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 132 states. [2020-07-28 21:31:43,825 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 132 states. [2020-07-28 21:31:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,832 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-07-28 21:31:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-07-28 21:31:43,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,833 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,833 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 132 states. [2020-07-28 21:31:43,833 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 132 states. [2020-07-28 21:31:43,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:43,840 INFO L93 Difference]: Finished difference Result 132 states and 332 transitions. [2020-07-28 21:31:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-07-28 21:31:43,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:43,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:43,841 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:43,841 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-28 21:31:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 332 transitions. [2020-07-28 21:31:43,847 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 332 transitions. Word has length 10 [2020-07-28 21:31:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:43,848 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 332 transitions. [2020-07-28 21:31:43,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 332 transitions. [2020-07-28 21:31:43,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:31:43,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:43,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:43,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:31:43,849 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:43,849 INFO L82 PathProgramCache]: Analyzing trace with hash 452543204, now seen corresponding path program 1 times [2020-07-28 21:31:43,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:43,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089131436] [2020-07-28 21:31:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:43,902 INFO L280 TraceCheckUtils]: 0: Hoare triple {3800#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,903 INFO L280 TraceCheckUtils]: 1: Hoare triple {3802#(= 0 ~x~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,903 INFO L280 TraceCheckUtils]: 2: Hoare triple {3802#(= 0 ~x~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,904 INFO L280 TraceCheckUtils]: 3: Hoare triple {3802#(= 0 ~x~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,905 INFO L280 TraceCheckUtils]: 4: Hoare triple {3802#(= 0 ~x~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,905 INFO L280 TraceCheckUtils]: 5: Hoare triple {3802#(= 0 ~x~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,906 INFO L280 TraceCheckUtils]: 6: Hoare triple {3802#(= 0 ~x~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,907 INFO L280 TraceCheckUtils]: 7: Hoare triple {3802#(= 0 ~x~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,907 INFO L280 TraceCheckUtils]: 8: Hoare triple {3802#(= 0 ~x~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3802#(= 0 ~x~0)} is VALID [2020-07-28 21:31:43,908 INFO L280 TraceCheckUtils]: 9: Hoare triple {3802#(= 0 ~x~0)} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, 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_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {3803#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:43,909 INFO L280 TraceCheckUtils]: 10: Hoare triple {3803#(= 0 ~__unbuffered_p1_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3801#false} is VALID [2020-07-28 21:31:43,910 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 21:31:43,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089131436] [2020-07-28 21:31:43,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:43,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:43,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154314826] [2020-07-28 21:31:43,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:31:43,911 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:43,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:43,928 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:43,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:43,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:43,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:43,929 INFO L87 Difference]: Start difference. First operand 132 states and 332 transitions. Second operand 4 states. [2020-07-28 21:31:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,004 INFO L93 Difference]: Finished difference Result 144 states and 346 transitions. [2020-07-28 21:31:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:31:44,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:31:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-07-28 21:31:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-07-28 21:31:44,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 31 transitions. [2020-07-28 21:31:44,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:44,052 INFO L225 Difference]: With dead ends: 144 [2020-07-28 21:31:44,052 INFO L226 Difference]: Without dead ends: 60 [2020-07-28 21:31:44,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:44,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-28 21:31:44,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-07-28 21:31:44,065 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:44,065 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:44,066 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:44,066 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,069 INFO L93 Difference]: Finished difference Result 60 states and 129 transitions. [2020-07-28 21:31:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:44,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,069 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:44,069 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,071 INFO L93 Difference]: Finished difference Result 60 states and 129 transitions. [2020-07-28 21:31:44,071 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:44,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,072 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,072 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:44,072 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-28 21:31:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-07-28 21:31:44,074 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 11 [2020-07-28 21:31:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:44,074 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-07-28 21:31:44,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:44,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:31:44,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:44,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:44,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:31:44,075 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:44,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:44,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 1 times [2020-07-28 21:31:44,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:44,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892504006] [2020-07-28 21:31:44,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:44,179 INFO L280 TraceCheckUtils]: 0: Hoare triple {4192#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,180 INFO L280 TraceCheckUtils]: 2: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,181 INFO L280 TraceCheckUtils]: 3: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,182 INFO L280 TraceCheckUtils]: 4: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,183 INFO L280 TraceCheckUtils]: 5: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4194#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,185 INFO L280 TraceCheckUtils]: 6: Hoare triple {4194#(= 0 ~__unbuffered_cnt~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,186 INFO L280 TraceCheckUtils]: 7: Hoare triple {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,187 INFO L280 TraceCheckUtils]: 8: Hoare triple {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,188 INFO L280 TraceCheckUtils]: 9: Hoare triple {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,189 INFO L280 TraceCheckUtils]: 10: Hoare triple {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, 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_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,191 INFO L280 TraceCheckUtils]: 11: Hoare triple {4195#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4193#false} is VALID [2020-07-28 21:31:44,192 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 21:31:44,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892504006] [2020-07-28 21:31:44,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:44,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:44,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256636695] [2020-07-28 21:31:44,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:44,194 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:44,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:44,211 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 21:31:44,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:44,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:44,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:44,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:44,212 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-07-28 21:31:44,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,337 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-07-28 21:31:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:31:44,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:44,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:31:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:44,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:31:44,341 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-28 21:31:44,393 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:44,394 INFO L225 Difference]: With dead ends: 73 [2020-07-28 21:31:44,394 INFO L226 Difference]: Without dead ends: 52 [2020-07-28 21:31:44,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-28 21:31:44,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-07-28 21:31:44,409 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:44,410 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:44,410 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:44,410 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,412 INFO L93 Difference]: Finished difference Result 52 states and 101 transitions. [2020-07-28 21:31:44,412 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:44,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,412 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,413 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:44,413 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,415 INFO L93 Difference]: Finished difference Result 52 states and 101 transitions. [2020-07-28 21:31:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:44,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,415 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,415 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:44,415 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-28 21:31:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-07-28 21:31:44,417 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-07-28 21:31:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:44,417 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-07-28 21:31:44,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:44,418 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:31:44,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:44,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:44,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:31:44,419 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:44,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-07-28 21:31:44,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:44,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184590114] [2020-07-28 21:31:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:44,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {4481#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,561 INFO L280 TraceCheckUtils]: 1: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,562 INFO L280 TraceCheckUtils]: 2: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,563 INFO L280 TraceCheckUtils]: 3: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,564 INFO L280 TraceCheckUtils]: 4: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,565 INFO L280 TraceCheckUtils]: 5: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,566 INFO L280 TraceCheckUtils]: 6: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,567 INFO L280 TraceCheckUtils]: 7: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,568 INFO L280 TraceCheckUtils]: 8: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4483#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,569 INFO L280 TraceCheckUtils]: 9: Hoare triple {4483#(= 0 ~__unbuffered_cnt~0)} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4484#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:31:44,571 INFO L280 TraceCheckUtils]: 10: Hoare triple {4484#(<= ~__unbuffered_cnt~0 1)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4485#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,572 INFO L280 TraceCheckUtils]: 11: Hoare triple {4485#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, 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_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4485#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,573 INFO L280 TraceCheckUtils]: 12: Hoare triple {4485#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4482#false} is VALID [2020-07-28 21:31:44,574 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 21:31:44,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184590114] [2020-07-28 21:31:44,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:44,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:31:44,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809536035] [2020-07-28 21:31:44,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:31:44,576 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:44,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:31:44,597 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:44,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:31:44,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:44,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:31:44,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:44,598 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-07-28 21:31:44,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,758 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-07-28 21:31:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:31:44,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:31:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:31:44,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2020-07-28 21:31:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:31:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2020-07-28 21:31:44,760 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 43 transitions. [2020-07-28 21:31:44,834 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 21:31:44,835 INFO L225 Difference]: With dead ends: 53 [2020-07-28 21:31:44,835 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 21:31:44,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:31:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 21:31:44,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 21:31:44,845 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:44,845 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:44,845 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:44,846 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:44,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,847 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2020-07-28 21:31:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:44,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,847 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,847 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:44,847 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:44,849 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2020-07-28 21:31:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:44,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:44,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:44,850 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:44,850 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 21:31:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-07-28 21:31:44,854 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-07-28 21:31:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:44,854 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-07-28 21:31:44,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:31:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:44,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:31:44,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:44,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:44,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:31:44,857 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-07-28 21:31:44,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:44,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263545833] [2020-07-28 21:31:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:44,986 INFO L280 TraceCheckUtils]: 0: Hoare triple {4695#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,987 INFO L280 TraceCheckUtils]: 1: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,988 INFO L280 TraceCheckUtils]: 2: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,989 INFO L280 TraceCheckUtils]: 3: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,989 INFO L280 TraceCheckUtils]: 4: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,990 INFO L280 TraceCheckUtils]: 5: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,991 INFO L280 TraceCheckUtils]: 6: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,992 INFO L280 TraceCheckUtils]: 7: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,992 INFO L280 TraceCheckUtils]: 8: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4697#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:44,993 INFO L280 TraceCheckUtils]: 9: Hoare triple {4697#(= 0 ~__unbuffered_cnt~0)} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4698#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:31:44,994 INFO L280 TraceCheckUtils]: 10: Hoare triple {4698#(<= ~__unbuffered_cnt~0 1)} [204] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4699#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:31:44,996 INFO L280 TraceCheckUtils]: 11: Hoare triple {4699#(<= ~__unbuffered_cnt~0 2)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4700#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,997 INFO L280 TraceCheckUtils]: 12: Hoare triple {4700#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4700#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:44,998 INFO L280 TraceCheckUtils]: 13: Hoare triple {4700#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4696#false} is VALID [2020-07-28 21:31:44,999 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 21:31:44,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263545833] [2020-07-28 21:31:44,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:44,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:31:45,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414654707] [2020-07-28 21:31:45,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:31:45,000 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:45,000 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:31:45,019 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:45,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:31:45,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:45,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:31:45,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:31:45,020 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-07-28 21:31:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,158 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-07-28 21:31:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:31:45,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:31:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:31:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2020-07-28 21:31:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:31:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2020-07-28 21:31:45,159 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 36 transitions. [2020-07-28 21:31:45,211 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:45,212 INFO L225 Difference]: With dead ends: 35 [2020-07-28 21:31:45,212 INFO L226 Difference]: Without dead ends: 29 [2020-07-28 21:31:45,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:31:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-28 21:31:45,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:45,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-28 21:31:45,221 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:45,222 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:45,222 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:45,222 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:45,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,223 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:31:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:45,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:45,223 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:45,223 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:45,223 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,224 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:31:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:45,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:45,225 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:45,225 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:45,225 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:45,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-28 21:31:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-07-28 21:31:45,226 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-07-28 21:31:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:45,226 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-07-28 21:31:45,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:31:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:31:45,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:45,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:45,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:31:45,227 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:45,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:45,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-07-28 21:31:45,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:45,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504555261] [2020-07-28 21:31:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:45,263 INFO L280 TraceCheckUtils]: 0: Hoare triple {4856#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2003~0.base_20| 4)) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2003~0.base_20|) (= 0 |v_#NULL.offset_4|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2003~0.base_20|) |v_ULTIMATE.start_main_~#t2003~0.offset_15| 0)) |v_#memory_int_15|) (= 0 v_~y~0_39) (= 0 |v_ULTIMATE.start_main_~#t2003~0.offset_15|) (< 0 |v_#StackHeapBarrier_15|) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t2003~0.base_20| 1)) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_13|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_15|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t2003~0.offset=|v_ULTIMATE.start_main_~#t2003~0.offset_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2003~0.base=|v_ULTIMATE.start_main_~#t2003~0.base_20|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2003~0.offset, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2005~0.base, #NULL.base, ULTIMATE.start_main_~#t2005~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2003~0.base, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4856#true} is VALID [2020-07-28 21:31:45,264 INFO L280 TraceCheckUtils]: 1: Hoare triple {4856#true} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4856#true} is VALID [2020-07-28 21:31:45,264 INFO L280 TraceCheckUtils]: 2: Hoare triple {4856#true} [203] L763-1-->L765: Formula: (and (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2004~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2004~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2004~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2004~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2004~0.base_11|) |v_ULTIMATE.start_main_~#t2004~0.offset_10| 1)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2004~0.offset=|v_ULTIMATE.start_main_~#t2004~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2004~0.base=|v_ULTIMATE.start_main_~#t2004~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2004~0.offset, ULTIMATE.start_main_~#t2004~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4856#true} is VALID [2020-07-28 21:31:45,264 INFO L280 TraceCheckUtils]: 3: Hoare triple {4856#true} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4856#true} is VALID [2020-07-28 21:31:45,265 INFO L280 TraceCheckUtils]: 4: Hoare triple {4856#true} [202] L765-1-->L767: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|) |v_ULTIMATE.start_main_~#t2005~0.offset_11| 2))) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2005~0.base_13| 1)) (= 0 |v_ULTIMATE.start_main_~#t2005~0.offset_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2005~0.base_13|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2005~0.base_13| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2005~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2005~0.offset=|v_ULTIMATE.start_main_~#t2005~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2005~0.base=|v_ULTIMATE.start_main_~#t2005~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2005~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2005~0.base] {4856#true} is VALID [2020-07-28 21:31:45,265 INFO L280 TraceCheckUtils]: 5: Hoare triple {4856#true} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4856#true} is VALID [2020-07-28 21:31:45,265 INFO L280 TraceCheckUtils]: 6: Hoare triple {4856#true} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} 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_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4856#true} is VALID [2020-07-28 21:31:45,266 INFO L280 TraceCheckUtils]: 7: Hoare triple {4856#true} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4856#true} is VALID [2020-07-28 21:31:45,266 INFO L280 TraceCheckUtils]: 8: Hoare triple {4856#true} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4856#true} is VALID [2020-07-28 21:31:45,266 INFO L280 TraceCheckUtils]: 9: Hoare triple {4856#true} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4856#true} is VALID [2020-07-28 21:31:45,266 INFO L280 TraceCheckUtils]: 10: Hoare triple {4856#true} [204] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4856#true} is VALID [2020-07-28 21:31:45,267 INFO L280 TraceCheckUtils]: 11: Hoare triple {4856#true} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, 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_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4856#true} is VALID [2020-07-28 21:31:45,267 INFO L280 TraceCheckUtils]: 12: Hoare triple {4856#true} [150] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4858#(= 1 ~y~0)} is VALID [2020-07-28 21:31:45,268 INFO L280 TraceCheckUtils]: 13: Hoare triple {4858#(= 1 ~y~0)} [200] L731-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4858#(= 1 ~y~0)} is VALID [2020-07-28 21:31:45,269 INFO L280 TraceCheckUtils]: 14: Hoare triple {4858#(= 1 ~y~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4858#(= 1 ~y~0)} is VALID [2020-07-28 21:31:45,270 INFO L280 TraceCheckUtils]: 15: Hoare triple {4858#(= 1 ~y~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4857#false} is VALID [2020-07-28 21:31:45,270 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 21:31:45,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504555261] [2020-07-28 21:31:45,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:45,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:45,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393293566] [2020-07-28 21:31:45,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:31:45,272 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:45,272 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:45,290 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:45,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:45,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:45,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:45,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:45,291 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-07-28 21:31:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,316 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-07-28 21:31:45,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:45,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:31:45,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:31:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:31:45,318 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2020-07-28 21:31:45,338 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 21:31:45,338 INFO L225 Difference]: With dead ends: 28 [2020-07-28 21:31:45,338 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:31:45,339 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 21:31:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:31:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:31:45,339 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:45,339 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:45,339 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:45,340 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:45,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,340 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:31:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:45,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:45,340 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:45,340 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:45,341 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:45,341 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:31:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:45,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:45,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:45,341 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:45,342 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:31:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:31:45,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:31:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:45,342 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:31:45,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:45,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:45,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:45,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:31:45,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:31:45 BasicIcfg [2020-07-28 21:31:45,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:31:45,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:31:45,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:31:45,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:31:45,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:39" (3/4) ... [2020-07-28 21:31:45,352 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:31:45,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:31:45,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:31:45,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:31:45,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:31:45,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:31:45,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:31:45,409 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:31:45,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:31:45,411 INFO L168 Benchmark]: Toolchain (without parser) took 6931.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -247.9 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:45,412 INFO L168 Benchmark]: CDTParser took 0.35 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 21:31:45,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:45,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.08 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 21:31:45,413 INFO L168 Benchmark]: Boogie Preprocessor took 30.96 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:45,414 INFO L168 Benchmark]: RCFGBuilder took 532.80 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:45,415 INFO L168 Benchmark]: TraceAbstraction took 5519.06 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.6 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:45,415 INFO L168 Benchmark]: Witness Printer took 61.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-07-28 21:31:45,418 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 0.35 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 725.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.08 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 30.96 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 532.80 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5519.06 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.6 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. * Witness Printer took 61.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 634 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 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: 5.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 144 SDtfs, 107 SDslu, 141 SDs, 0 SdLazy, 104 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 3372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...