./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dcfa6e3a1c75aab08dcc1f5e84b8de5a3aa3bc7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:35:03,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:35:03,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:35:03,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:35:03,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:35:03,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:35:03,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:35:03,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:35:03,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:35:03,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:35:03,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:35:03,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:35:03,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:35:03,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:35:03,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:35:03,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:35:03,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:35:03,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:35:03,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:35:03,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:35:03,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:35:03,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:35:03,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:35:03,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:35:03,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:35:03,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:35:03,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:35:03,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:35:03,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:35:03,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:35:03,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:35:03,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:35:03,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:35:03,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:35:03,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:35:03,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:35:03,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:35:03,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:35:03,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:35:03,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:35:03,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:35:03,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:35:03,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:35:03,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:35:03,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:35:03,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:35:03,401 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:35:03,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:35:03,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:35:03,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:35:03,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:35:03,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:35:03,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:35:03,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:35:03,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:35:03,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:35:03,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:35:03,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:35:03,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:35:03,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:35:03,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:35:03,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:35:03,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:35:03,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:35:03,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:35:03,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:35:03,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:35:03,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:35:03,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:35:03,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:35:03,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:35:03,415 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 -> 2dcfa6e3a1c75aab08dcc1f5e84b8de5a3aa3bc7 [2020-07-28 21:35:03,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:35:03,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:35:03,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:35:03,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:35:03,776 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:35:03,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2020-07-28 21:35:03,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b847fd5/7e1afa5c2e40413a857b236f51bc7085/FLAG2d9fdb649 [2020-07-28 21:35:04,381 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:35:04,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2020-07-28 21:35:04,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b847fd5/7e1afa5c2e40413a857b236f51bc7085/FLAG2d9fdb649 [2020-07-28 21:35:04,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b847fd5/7e1afa5c2e40413a857b236f51bc7085 [2020-07-28 21:35:04,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:35:04,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:35:04,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:04,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:35:04,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:35:04,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:04" (1/1) ... [2020-07-28 21:35:04,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc2697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:04, skipping insertion in model container [2020-07-28 21:35:04,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:35:04" (1/1) ... [2020-07-28 21:35:04,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:35:04,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:35:05,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:05,339 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:35:05,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:35:05,506 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:35:05,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05 WrapperNode [2020-07-28 21:35:05,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:35:05,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:05,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:35:05,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:35:05,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:35:05,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:35:05,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:35:05,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:35:05,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... [2020-07-28 21:35:05,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:35:05,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:35:05,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:35:05,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:35:05,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:35:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:35:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:35:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:35:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:35:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:35:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:35:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:35:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:35:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:35:05,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:35:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:35:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:35:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:35:05,667 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 21:35:06,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:35:06,107 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:35:06,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:06 BoogieIcfgContainer [2020-07-28 21:35:06,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:35:06,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:35:06,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:35:06,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:35:06,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:35:04" (1/3) ... [2020-07-28 21:35:06,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7f74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:06, skipping insertion in model container [2020-07-28 21:35:06,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:35:05" (2/3) ... [2020-07-28 21:35:06,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a7f74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:35:06, skipping insertion in model container [2020-07-28 21:35:06,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:06" (3/3) ... [2020-07-28 21:35:06,120 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-07-28 21:35:06,130 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:35:06,130 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:35:06,138 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:35:06,139 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:35:06,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:35:06,210 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:35:06,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:35:06,229 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:35:06,229 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:35:06,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:35:06,229 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:35:06,230 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:35:06,230 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:35:06,230 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:35:06,243 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:06,245 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:06,285 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:06,286 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:06,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:06,294 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:35:06,318 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:35:06,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:35:06,319 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:35:06,322 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:35:06,323 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:35:08,820 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-07-28 21:35:08,821 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:35:08,825 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:35:08,851 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:35:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:35:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:35:08,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:08,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:08,862 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:08,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:08,869 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-07-28 21:35:08,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:08,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172266708] [2020-07-28 21:35:08,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:09,130 INFO L280 TraceCheckUtils]: 0: Hoare triple {676#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,131 INFO L280 TraceCheckUtils]: 1: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [163] L768-->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] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,132 INFO L280 TraceCheckUtils]: 2: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,133 INFO L280 TraceCheckUtils]: 3: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [165] L770-->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] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,134 INFO L280 TraceCheckUtils]: 4: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,134 INFO L280 TraceCheckUtils]: 5: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [167] L772-->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] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,135 INFO L280 TraceCheckUtils]: 6: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {678#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,137 INFO L280 TraceCheckUtils]: 7: Hoare triple {678#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {677#false} is VALID [2020-07-28 21:35:09,139 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 21:35:09,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172266708] [2020-07-28 21:35:09,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:09,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:09,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091837681] [2020-07-28 21:35:09,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:09,150 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:09,154 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:09,171 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 21:35:09,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:09,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:09,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:09,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:09,186 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:35:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,312 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:35:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:09,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:35:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:09,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:09,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:35:09,357 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:09,380 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:35:09,380 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:35:09,382 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 21:35:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:35:09,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:35:09,486 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:09,487 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:09,487 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:09,487 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:09,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,505 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:09,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:09,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:09,508 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:09,508 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:35:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,526 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:35:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:09,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:09,528 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:09,529 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:09,529 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:35:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:35:09,545 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:35:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:09,546 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:35:09,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:35:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:35:09,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:09,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:09,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:35:09,548 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1359379978, now seen corresponding path program 1 times [2020-07-28 21:35:09,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:09,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893465364] [2020-07-28 21:35:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:09,680 INFO L280 TraceCheckUtils]: 0: Hoare triple {1835#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,681 INFO L280 TraceCheckUtils]: 1: Hoare triple {1837#(= 0 ~x~0)} [163] L768-->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] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,682 INFO L280 TraceCheckUtils]: 2: Hoare triple {1837#(= 0 ~x~0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,682 INFO L280 TraceCheckUtils]: 3: Hoare triple {1837#(= 0 ~x~0)} [165] L770-->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] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,683 INFO L280 TraceCheckUtils]: 4: Hoare triple {1837#(= 0 ~x~0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,684 INFO L280 TraceCheckUtils]: 5: Hoare triple {1837#(= 0 ~x~0)} [167] L772-->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] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,685 INFO L280 TraceCheckUtils]: 6: Hoare triple {1837#(= 0 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1837#(= 0 ~x~0)} is VALID [2020-07-28 21:35:09,686 INFO L280 TraceCheckUtils]: 7: Hoare triple {1837#(= 0 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1838#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:09,687 INFO L280 TraceCheckUtils]: 8: Hoare triple {1838#(= 0 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1836#false} is VALID [2020-07-28 21:35:09,688 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 21:35:09,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893465364] [2020-07-28 21:35:09,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:09,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:09,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213257435] [2020-07-28 21:35:09,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:35:09,690 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:09,690 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:09,706 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 21:35:09,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:09,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:09,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:09,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:09,707 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:35:09,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,795 INFO L93 Difference]: Finished difference Result 278 states and 745 transitions. [2020-07-28 21:35:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:09,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:35:09,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:35:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:35:09,797 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:35:09,845 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 21:35:09,851 INFO L225 Difference]: With dead ends: 278 [2020-07-28 21:35:09,851 INFO L226 Difference]: Without dead ends: 182 [2020-07-28 21:35:09,852 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 21:35:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-28 21:35:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-07-28 21:35:09,901 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:09,901 INFO L82 GeneralOperation]: Start isEquivalent. First operand 182 states. Second operand 182 states. [2020-07-28 21:35:09,902 INFO L74 IsIncluded]: Start isIncluded. First operand 182 states. Second operand 182 states. [2020-07-28 21:35:09,902 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 182 states. [2020-07-28 21:35:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,912 INFO L93 Difference]: Finished difference Result 182 states and 481 transitions. [2020-07-28 21:35:09,912 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 481 transitions. [2020-07-28 21:35:09,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:09,913 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:09,913 INFO L74 IsIncluded]: Start isIncluded. First operand 182 states. Second operand 182 states. [2020-07-28 21:35:09,913 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 182 states. [2020-07-28 21:35:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:09,923 INFO L93 Difference]: Finished difference Result 182 states and 481 transitions. [2020-07-28 21:35:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 481 transitions. [2020-07-28 21:35:09,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:09,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:09,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:09,924 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-28 21:35:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 481 transitions. [2020-07-28 21:35:09,934 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 481 transitions. Word has length 9 [2020-07-28 21:35:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:09,934 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 481 transitions. [2020-07-28 21:35:09,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 481 transitions. [2020-07-28 21:35:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:35:09,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:09,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:09,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:35:09,935 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:09,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:09,936 INFO L82 PathProgramCache]: Analyzing trace with hash 415019454, now seen corresponding path program 1 times [2020-07-28 21:35:09,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:09,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422700116] [2020-07-28 21:35:09,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:10,007 INFO L280 TraceCheckUtils]: 0: Hoare triple {2849#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {2849#true} is VALID [2020-07-28 21:35:10,008 INFO L280 TraceCheckUtils]: 1: Hoare triple {2849#true} [163] L768-->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] {2849#true} is VALID [2020-07-28 21:35:10,008 INFO L280 TraceCheckUtils]: 2: Hoare triple {2849#true} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {2849#true} is VALID [2020-07-28 21:35:10,009 INFO L280 TraceCheckUtils]: 3: Hoare triple {2849#true} [165] L770-->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] {2849#true} is VALID [2020-07-28 21:35:10,009 INFO L280 TraceCheckUtils]: 4: Hoare triple {2849#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2851#(= 1 ~x~0)} is VALID [2020-07-28 21:35:10,010 INFO L280 TraceCheckUtils]: 5: Hoare triple {2851#(= 1 ~x~0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2851#(= 1 ~x~0)} is VALID [2020-07-28 21:35:10,011 INFO L280 TraceCheckUtils]: 6: Hoare triple {2851#(= 1 ~x~0)} [167] L772-->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] {2851#(= 1 ~x~0)} is VALID [2020-07-28 21:35:10,012 INFO L280 TraceCheckUtils]: 7: Hoare triple {2851#(= 1 ~x~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2851#(= 1 ~x~0)} is VALID [2020-07-28 21:35:10,012 INFO L280 TraceCheckUtils]: 8: Hoare triple {2851#(= 1 ~x~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2852#(= 1 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:35:10,013 INFO L280 TraceCheckUtils]: 9: Hoare triple {2852#(= 1 ~__unbuffered_p2_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2850#false} is VALID [2020-07-28 21:35:10,014 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 21:35:10,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422700116] [2020-07-28 21:35:10,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:10,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:10,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859995158] [2020-07-28 21:35:10,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:35:10,016 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:10,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:10,030 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 21:35:10,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:10,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:10,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:10,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:10,031 INFO L87 Difference]: Start difference. First operand 182 states and 481 transitions. Second operand 4 states. [2020-07-28 21:35:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,138 INFO L93 Difference]: Finished difference Result 218 states and 556 transitions. [2020-07-28 21:35:10,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:10,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:35:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2020-07-28 21:35:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2020-07-28 21:35:10,141 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 40 transitions. [2020-07-28 21:35:10,187 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:10,190 INFO L225 Difference]: With dead ends: 218 [2020-07-28 21:35:10,190 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:35:10,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:35:10,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:35:10,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:35:10,226 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:10,226 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:35:10,227 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:35:10,227 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:35:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,234 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:35:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:35:10,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:10,234 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:10,235 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:35:10,235 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:35:10,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,242 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:35:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:35:10,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:10,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:10,243 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:10,243 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:35:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-07-28 21:35:10,249 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 10 [2020-07-28 21:35:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:10,250 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-07-28 21:35:10,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:35:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:35:10,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:10,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:10,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:35:10,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:10,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1558339042, now seen corresponding path program 1 times [2020-07-28 21:35:10,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:10,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388016695] [2020-07-28 21:35:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:10,336 INFO L280 TraceCheckUtils]: 0: Hoare triple {3659#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,338 INFO L280 TraceCheckUtils]: 1: Hoare triple {3661#(= 0 ~y~0)} [163] L768-->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] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,339 INFO L280 TraceCheckUtils]: 2: Hoare triple {3661#(= 0 ~y~0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,339 INFO L280 TraceCheckUtils]: 3: Hoare triple {3661#(= 0 ~y~0)} [165] L770-->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] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,340 INFO L280 TraceCheckUtils]: 4: Hoare triple {3661#(= 0 ~y~0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,341 INFO L280 TraceCheckUtils]: 5: Hoare triple {3661#(= 0 ~y~0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,342 INFO L280 TraceCheckUtils]: 6: Hoare triple {3661#(= 0 ~y~0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,343 INFO L280 TraceCheckUtils]: 7: Hoare triple {3661#(= 0 ~y~0)} [167] L772-->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] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,344 INFO L280 TraceCheckUtils]: 8: Hoare triple {3661#(= 0 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,346 INFO L280 TraceCheckUtils]: 9: Hoare triple {3661#(= 0 ~y~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3661#(= 0 ~y~0)} is VALID [2020-07-28 21:35:10,348 INFO L280 TraceCheckUtils]: 10: Hoare triple {3661#(= 0 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3660#false} is VALID [2020-07-28 21:35:10,349 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 21:35:10,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388016695] [2020-07-28 21:35:10,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:10,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:35:10,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879487528] [2020-07-28 21:35:10,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:10,354 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:10,354 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:10,374 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 21:35:10,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:10,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:10,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:10,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:10,375 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-07-28 21:35:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,433 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:35:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:10,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:35:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:35:10,437 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:35:10,473 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:10,477 INFO L225 Difference]: With dead ends: 144 [2020-07-28 21:35:10,480 INFO L226 Difference]: Without dead ends: 144 [2020-07-28 21:35:10,480 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 21:35:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-07-28 21:35:10,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,491 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-07-28 21:35:10,536 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:10,536 INFO L82 GeneralOperation]: Start isEquivalent. First operand 144 states. Second operand 144 states. [2020-07-28 21:35:10,536 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states. Second operand 144 states. [2020-07-28 21:35:10,537 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 144 states. [2020-07-28 21:35:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,563 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:35:10,565 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:35:10,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:10,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:10,568 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states. Second operand 144 states. [2020-07-28 21:35:10,569 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 144 states. [2020-07-28 21:35:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,582 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:35:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:35:10,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:10,583 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:10,583 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:10,583 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-07-28 21:35:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-07-28 21:35:10,589 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-07-28 21:35:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:10,590 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-07-28 21:35:10,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:35:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:35:10,591 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:10,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:10,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:35:10,591 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:10,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-07-28 21:35:10,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:10,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599792525] [2020-07-28 21:35:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:10,692 INFO L280 TraceCheckUtils]: 0: Hoare triple {4384#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,693 INFO L280 TraceCheckUtils]: 1: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [163] L768-->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] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,694 INFO L280 TraceCheckUtils]: 2: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,695 INFO L280 TraceCheckUtils]: 3: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [165] L770-->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] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,696 INFO L280 TraceCheckUtils]: 4: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,696 INFO L280 TraceCheckUtils]: 5: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,697 INFO L280 TraceCheckUtils]: 6: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,698 INFO L280 TraceCheckUtils]: 7: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,698 INFO L280 TraceCheckUtils]: 8: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [167] L772-->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] {4386#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:10,700 INFO L280 TraceCheckUtils]: 9: Hoare triple {4386#(<= ~__unbuffered_cnt~0 0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4387#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:10,701 INFO L280 TraceCheckUtils]: 10: Hoare triple {4387#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4387#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:10,703 INFO L280 TraceCheckUtils]: 11: Hoare triple {4387#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4385#false} is VALID [2020-07-28 21:35:10,704 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 21:35:10,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599792525] [2020-07-28 21:35:10,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:10,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:10,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191437289] [2020-07-28 21:35:10,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:10,705 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:10,705 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:10,728 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 21:35:10,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:10,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:10,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:10,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:10,729 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-07-28 21:35:10,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:10,866 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-07-28 21:35:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:35:10,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:35:10,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:10,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:35:10,868 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:35:10,966 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:10,971 INFO L225 Difference]: With dead ends: 164 [2020-07-28 21:35:10,971 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:35:10,971 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 21:35:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:35:10,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:10,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-28 21:35:10,999 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:10,999 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 124 states. [2020-07-28 21:35:10,999 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:35:10,999 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:35:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,003 INFO L93 Difference]: Finished difference Result 124 states and 281 transitions. [2020-07-28 21:35:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:35:11,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,004 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,004 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:35:11,005 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:35:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,009 INFO L93 Difference]: Finished difference Result 124 states and 281 transitions. [2020-07-28 21:35:11,009 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:35:11,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,010 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,010 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:11,010 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-28 21:35:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-07-28 21:35:11,014 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-07-28 21:35:11,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:11,014 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-07-28 21:35:11,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:35:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:35:11,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:11,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:11,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:35:11,015 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:11,016 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-07-28 21:35:11,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:11,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879471633] [2020-07-28 21:35:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:11,141 INFO L280 TraceCheckUtils]: 0: Hoare triple {5052#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,142 INFO L280 TraceCheckUtils]: 1: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [163] L768-->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] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,144 INFO L280 TraceCheckUtils]: 2: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,146 INFO L280 TraceCheckUtils]: 3: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [165] L770-->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] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,147 INFO L280 TraceCheckUtils]: 4: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,147 INFO L280 TraceCheckUtils]: 5: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5054#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:11,149 INFO L280 TraceCheckUtils]: 6: Hoare triple {5054#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5055#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:11,149 INFO L280 TraceCheckUtils]: 7: Hoare triple {5055#(<= ~__unbuffered_cnt~0 1)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5055#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:11,150 INFO L280 TraceCheckUtils]: 8: Hoare triple {5055#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5055#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:11,151 INFO L280 TraceCheckUtils]: 9: Hoare triple {5055#(<= ~__unbuffered_cnt~0 1)} [167] L772-->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] {5055#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:11,152 INFO L280 TraceCheckUtils]: 10: Hoare triple {5055#(<= ~__unbuffered_cnt~0 1)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5056#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:11,154 INFO L280 TraceCheckUtils]: 11: Hoare triple {5056#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5056#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:11,156 INFO L280 TraceCheckUtils]: 12: Hoare triple {5056#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5053#false} is VALID [2020-07-28 21:35:11,157 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 21:35:11,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879471633] [2020-07-28 21:35:11,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:11,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:11,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027500621] [2020-07-28 21:35:11,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:11,158 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:11,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:35:11,177 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 21:35:11,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:35:11,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:11,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:35:11,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:35:11,179 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-07-28 21:35:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,354 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-07-28 21:35:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:35:11,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:35:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:11,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:35:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:35:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:35:11,356 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 58 transitions. [2020-07-28 21:35:11,436 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:11,437 INFO L225 Difference]: With dead ends: 122 [2020-07-28 21:35:11,438 INFO L226 Difference]: Without dead ends: 97 [2020-07-28 21:35:11,438 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 21:35:11,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-07-28 21:35:11,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-07-28 21:35:11,459 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:11,459 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 97 states. [2020-07-28 21:35:11,459 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:35:11,459 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:35:11,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,463 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:35:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:35:11,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,464 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:35:11,464 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:35:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,467 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:35:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:35:11,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,468 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:11,468 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-28 21:35:11,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-07-28 21:35:11,472 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-07-28 21:35:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:11,472 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-07-28 21:35:11,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:35:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:35:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:35:11,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:11,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:11,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:35:11,474 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:11,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-07-28 21:35:11,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:11,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687475577] [2020-07-28 21:35:11,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:11,534 INFO L280 TraceCheckUtils]: 0: Hoare triple {5571#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {5571#true} is VALID [2020-07-28 21:35:11,534 INFO L280 TraceCheckUtils]: 1: Hoare triple {5571#true} [163] L768-->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] {5571#true} is VALID [2020-07-28 21:35:11,534 INFO L280 TraceCheckUtils]: 2: Hoare triple {5571#true} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {5571#true} is VALID [2020-07-28 21:35:11,535 INFO L280 TraceCheckUtils]: 3: Hoare triple {5571#true} [165] L770-->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] {5571#true} is VALID [2020-07-28 21:35:11,535 INFO L280 TraceCheckUtils]: 4: Hoare triple {5571#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5571#true} is VALID [2020-07-28 21:35:11,535 INFO L280 TraceCheckUtils]: 5: Hoare triple {5571#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {5571#true} is VALID [2020-07-28 21:35:11,535 INFO L280 TraceCheckUtils]: 6: Hoare triple {5571#true} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5571#true} is VALID [2020-07-28 21:35:11,536 INFO L280 TraceCheckUtils]: 7: Hoare triple {5571#true} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5571#true} is VALID [2020-07-28 21:35:11,536 INFO L280 TraceCheckUtils]: 8: Hoare triple {5571#true} [167] L772-->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] {5571#true} is VALID [2020-07-28 21:35:11,536 INFO L280 TraceCheckUtils]: 9: Hoare triple {5571#true} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5571#true} is VALID [2020-07-28 21:35:11,537 INFO L280 TraceCheckUtils]: 10: Hoare triple {5571#true} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5573#(= 1 ~y~0)} is VALID [2020-07-28 21:35:11,538 INFO L280 TraceCheckUtils]: 11: Hoare triple {5573#(= 1 ~y~0)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5573#(= 1 ~y~0)} is VALID [2020-07-28 21:35:11,538 INFO L280 TraceCheckUtils]: 12: Hoare triple {5573#(= 1 ~y~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5573#(= 1 ~y~0)} is VALID [2020-07-28 21:35:11,539 INFO L280 TraceCheckUtils]: 13: Hoare triple {5573#(= 1 ~y~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5572#false} is VALID [2020-07-28 21:35:11,540 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 21:35:11,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687475577] [2020-07-28 21:35:11,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:11,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:35:11,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749331948] [2020-07-28 21:35:11,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:11,541 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:11,541 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:35:11,556 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 21:35:11,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:35:11,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:11,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:35:11,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:35:11,557 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-07-28 21:35:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,591 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-07-28 21:35:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:35:11,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:35:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-28 21:35:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:35:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-28 21:35:11,593 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 24 transitions. [2020-07-28 21:35:11,618 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:11,620 INFO L225 Difference]: With dead ends: 115 [2020-07-28 21:35:11,620 INFO L226 Difference]: Without dead ends: 98 [2020-07-28 21:35:11,621 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 21:35:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-28 21:35:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-07-28 21:35:11,642 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:11,642 INFO L82 GeneralOperation]: Start isEquivalent. First operand 98 states. Second operand 96 states. [2020-07-28 21:35:11,642 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 96 states. [2020-07-28 21:35:11,642 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 96 states. [2020-07-28 21:35:11,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,645 INFO L93 Difference]: Finished difference Result 98 states and 194 transitions. [2020-07-28 21:35:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 194 transitions. [2020-07-28 21:35:11,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,645 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,646 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 98 states. [2020-07-28 21:35:11,646 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 98 states. [2020-07-28 21:35:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,649 INFO L93 Difference]: Finished difference Result 98 states and 194 transitions. [2020-07-28 21:35:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 194 transitions. [2020-07-28 21:35:11,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,650 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,650 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:11,650 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-28 21:35:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-07-28 21:35:11,653 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-07-28 21:35:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:11,653 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-07-28 21:35:11,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:35:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-07-28 21:35:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:11,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:11,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:11,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:35:11,655 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:11,655 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-07-28 21:35:11,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:11,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102380313] [2020-07-28 21:35:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:11,704 INFO L280 TraceCheckUtils]: 0: Hoare triple {6079#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6079#true} is VALID [2020-07-28 21:35:11,705 INFO L280 TraceCheckUtils]: 1: Hoare triple {6079#true} [163] L768-->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] {6079#true} is VALID [2020-07-28 21:35:11,705 INFO L280 TraceCheckUtils]: 2: Hoare triple {6079#true} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {6079#true} is VALID [2020-07-28 21:35:11,705 INFO L280 TraceCheckUtils]: 3: Hoare triple {6079#true} [165] L770-->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] {6079#true} is VALID [2020-07-28 21:35:11,706 INFO L280 TraceCheckUtils]: 4: Hoare triple {6079#true} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6079#true} is VALID [2020-07-28 21:35:11,706 INFO L280 TraceCheckUtils]: 5: Hoare triple {6079#true} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6081#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:11,707 INFO L280 TraceCheckUtils]: 6: Hoare triple {6081#(<= 2 ~x~0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6081#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:11,708 INFO L280 TraceCheckUtils]: 7: Hoare triple {6081#(<= 2 ~x~0)} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6081#(<= 2 ~x~0)} is VALID [2020-07-28 21:35:11,708 INFO L280 TraceCheckUtils]: 8: Hoare triple {6081#(<= 2 ~x~0)} [146] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,709 INFO L280 TraceCheckUtils]: 9: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [200] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_17|) (= (+ v_~__unbuffered_cnt~0_93 1) v_~__unbuffered_cnt~0_92) (= 0 |v_P0Thread1of1ForFork0_#res.base_17|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_93} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_17|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,710 INFO L280 TraceCheckUtils]: 10: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,710 INFO L280 TraceCheckUtils]: 11: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [167] L772-->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] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,711 INFO L280 TraceCheckUtils]: 12: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,712 INFO L280 TraceCheckUtils]: 13: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6082#(<= 2 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:35:11,713 INFO L280 TraceCheckUtils]: 14: Hoare triple {6082#(<= 2 ~__unbuffered_p0_EAX~0)} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6080#false} is VALID [2020-07-28 21:35:11,714 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 21:35:11,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102380313] [2020-07-28 21:35:11,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:11,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:35:11,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146819689] [2020-07-28 21:35:11,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:11,715 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:11,715 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:35:11,730 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:11,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:35:11,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:11,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:35:11,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:35:11,731 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 4 states. [2020-07-28 21:35:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,801 INFO L93 Difference]: Finished difference Result 114 states and 219 transitions. [2020-07-28 21:35:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:35:11,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-28 21:35:11,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:35:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:35:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:35:11,803 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:35:11,844 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:11,845 INFO L225 Difference]: With dead ends: 114 [2020-07-28 21:35:11,846 INFO L226 Difference]: Without dead ends: 76 [2020-07-28 21:35:11,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:35:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-28 21:35:11,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:35:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2020-07-28 21:35:11,863 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:11,863 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 75 states. [2020-07-28 21:35:11,863 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 75 states. [2020-07-28 21:35:11,863 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 75 states. [2020-07-28 21:35:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,866 INFO L93 Difference]: Finished difference Result 76 states and 135 transitions. [2020-07-28 21:35:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 135 transitions. [2020-07-28 21:35:11,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,867 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,867 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 76 states. [2020-07-28 21:35:11,867 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 76 states. [2020-07-28 21:35:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:11,870 INFO L93 Difference]: Finished difference Result 76 states and 135 transitions. [2020-07-28 21:35:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 135 transitions. [2020-07-28 21:35:11,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:11,870 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:11,870 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:11,870 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-28 21:35:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 135 transitions. [2020-07-28 21:35:11,873 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 135 transitions. Word has length 15 [2020-07-28 21:35:11,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:11,873 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 135 transitions. [2020-07-28 21:35:11,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:35:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 135 transitions. [2020-07-28 21:35:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:35:11,874 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:35:11,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:35:11,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:35:11,875 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:35:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:35:11,876 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-07-28 21:35:11,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:35:11,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935880648] [2020-07-28 21:35:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:35:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:35:12,023 INFO L280 TraceCheckUtils]: 0: Hoare triple {6503#true} [224] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2127~0.base_25| 4) |v_#length_21|) (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2127~0.base_25|) (= 0 v_~main$tmp_guard1~0_52) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25|)) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2127~0.base_25|) |v_ULTIMATE.start_main_~#t2127~0.offset_20| 0)) |v_#memory_int_19|) (= 0 v_~y~0_65) (= 0 v_~__unbuffered_p2_EAX~0_55) (= 0 v_~x~0_78) (= 0 |v_ULTIMATE.start_main_~#t2127~0.offset_20|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2127~0.base_25| 1)) (= 0 v_~__unbuffered_p0_EAX~0_60) (= 0 v_~main$tmp_guard0~0_39) (< 0 |v_#StackHeapBarrier_14|) (= v_~__unbuffered_cnt~0_164 0) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_16|, ULTIMATE.start_main_~#t2127~0.base=|v_ULTIMATE.start_main_~#t2127~0.base_25|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_14|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_52, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_18|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_3|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_20|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_60, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2127~0.offset=|v_ULTIMATE.start_main_~#t2127~0.offset_20|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_23|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_55, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_164, ~y~0=v_~y~0_65, ~x~0=v_~x~0_78} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.offset, ULTIMATE.start_main_~#t2127~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2128~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2129~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2127~0.offset, ULTIMATE.start_main_~#t2128~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [163] L768-->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] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [197] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10|)) (< |v_#StackHeapBarrier_8| |v_ULTIMATE.start_main_~#t2128~0.base_10|) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2128~0.base_10| 4) |v_#length_13|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2128~0.base_10|) |v_ULTIMATE.start_main_~#t2128~0.offset_9| 1)) |v_#memory_int_11|) (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2128~0.base_10| 1)) (= 0 |v_ULTIMATE.start_main_~#t2128~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_8|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2128~0.base=|v_ULTIMATE.start_main_~#t2128~0.base_10|, #length=|v_#length_13|, ULTIMATE.start_main_~#t2128~0.offset=|v_ULTIMATE.start_main_~#t2128~0.offset_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2128~0.base, #length, ULTIMATE.start_main_~#t2128~0.offset] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,027 INFO L280 TraceCheckUtils]: 3: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [165] L770-->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] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,028 INFO L280 TraceCheckUtils]: 4: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [192] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_25) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_25} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,028 INFO L280 TraceCheckUtils]: 5: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [152] L730-->L733: Formula: (= v_~x~0_3 2) InVars {} OutVars{~x~0=v_~x~0_3} AuxVars[] AssignedVars[~x~0] {6505#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:35:12,029 INFO L280 TraceCheckUtils]: 6: Hoare triple {6505#(<= ~__unbuffered_cnt~0 0)} [196] L733-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6506#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:12,030 INFO L280 TraceCheckUtils]: 7: Hoare triple {6506#(<= ~__unbuffered_cnt~0 1)} [207] L770-1-->L772: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (not (= 0 |v_ULTIMATE.start_main_~#t2129~0.base_13|)) (= |v_ULTIMATE.start_main_~#t2129~0.offset_11| 0) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2129~0.base_13| 1) |v_#valid_33|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2129~0.base_13|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2129~0.base_13| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2129~0.base_13|) |v_ULTIMATE.start_main_~#t2129~0.offset_11| 2)) |v_#memory_int_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2129~0.base=|v_ULTIMATE.start_main_~#t2129~0.base_13|, ULTIMATE.start_main_~#t2129~0.offset=|v_ULTIMATE.start_main_~#t2129~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_13|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2129~0.base, ULTIMATE.start_main_~#t2129~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6506#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:12,031 INFO L280 TraceCheckUtils]: 8: Hoare triple {6506#(<= ~__unbuffered_cnt~0 1)} [167] L772-->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] {6506#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:12,031 INFO L280 TraceCheckUtils]: 9: Hoare triple {6506#(<= ~__unbuffered_cnt~0 1)} [190] P2ENTRY-->L745: Formula: (and (= v_~x~0_24 v_~__unbuffered_p2_EAX~0_20) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6506#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:12,032 INFO L280 TraceCheckUtils]: 10: Hoare triple {6506#(<= ~__unbuffered_cnt~0 1)} [158] L745-->L748: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6506#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:35:12,033 INFO L280 TraceCheckUtils]: 11: Hoare triple {6506#(<= ~__unbuffered_cnt~0 1)} [204] L748-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= v_~__unbuffered_cnt~0_98 (+ v_~__unbuffered_cnt~0_99 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_98, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6507#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:35:12,034 INFO L280 TraceCheckUtils]: 12: Hoare triple {6507#(<= ~__unbuffered_cnt~0 2)} [214] L772-1-->L3: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (= (mod v_~main$tmp_guard0~0_29 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|) (let ((.cse0 (= v_~__unbuffered_cnt~0_110 3))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_29)) (and (= 0 v_~main$tmp_guard0~0_29) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_18|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_110, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_29} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6508#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:12,035 INFO L280 TraceCheckUtils]: 13: Hoare triple {6508#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [191] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= 2 v_~y~0_22) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_22, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6508#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} is VALID [2020-07-28 21:35:12,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {6508#(and (<= ULTIMATE.start_assume_abort_if_not_~cond 0) (< 0 (+ ULTIMATE.start_assume_abort_if_not_~cond 1)))} [218] L3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_35 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_14 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|) (= 0 v_~__unbuffered_p0_EAX~0_41) (= 2 v_~y~0_48) (= 2 v_~x~0_57) (= 2 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard1~0_35)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_35, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~y~0=v_~y~0_48, ~x~0=v_~x~0_57, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_14|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6504#false} is VALID [2020-07-28 21:35:12,037 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 21:35:12,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935880648] [2020-07-28 21:35:12,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:35:12,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:35:12,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140432239] [2020-07-28 21:35:12,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:12,043 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:35:12,043 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:35:12,063 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:12,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:35:12,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:35:12,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:35:12,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:35:12,064 INFO L87 Difference]: Start difference. First operand 75 states and 135 transitions. Second operand 6 states. [2020-07-28 21:35:12,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:12,173 INFO L93 Difference]: Finished difference Result 70 states and 129 transitions. [2020-07-28 21:35:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:35:12,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:35:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:35:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 21:35:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:35:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 21:35:12,175 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 35 transitions. [2020-07-28 21:35:12,215 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:35:12,215 INFO L225 Difference]: With dead ends: 70 [2020-07-28 21:35:12,215 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:35:12,215 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 21:35:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:35:12,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:35:12,216 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:35:12,216 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:12,216 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:12,216 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:12,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:12,217 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:12,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:12,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:12,217 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:12,218 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:35:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:35:12,218 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:35:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:12,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:12,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:35:12,219 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:35:12,219 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:35:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:35:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:35:12,220 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 21:35:12,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:35:12,220 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:35:12,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:35:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:35:12,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:35:12,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:35:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:35:12 BasicIcfg [2020-07-28 21:35:12,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:35:12,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:35:12,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:35:12,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:35:12,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:35:06" (3/4) ... [2020-07-28 21:35:12,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:35:12,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:35:12,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:35:12,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:35:12,242 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:35:12,243 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:35:12,243 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:35:12,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:35:12,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:35:12,296 INFO L168 Benchmark]: Toolchain (without parser) took 7586.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). Peak memory consumption was 180.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:12,296 INFO L168 Benchmark]: CDTParser took 0.36 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 21:35:12,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -131.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:12,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.75 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 21:35:12,298 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:12,299 INFO L168 Benchmark]: RCFGBuilder took 515.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:12,299 INFO L168 Benchmark]: TraceAbstraction took 6112.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -42.0 MB). Peak memory consumption was 150.4 MB. Max. memory is 11.5 GB. [2020-07-28 21:35:12,300 INFO L168 Benchmark]: Witness Printer took 67.33 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:35:12,303 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 0.36 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 780.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -131.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.75 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 27.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 515.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6112.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -42.0 MB). Peak memory consumption was 150.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.33 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 172 SDtfs, 144 SDslu, 210 SDs, 0 SdLazy, 105 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3332 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...