./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_pso.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe009_pso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e897fbb7c454b00c722e987e58e3113990876413 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 21:31:27,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:31:27,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:31:27,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:31:27,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:31:27,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:31:27,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:31:27,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:31:27,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:31:27,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:31:27,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:31:27,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:31:27,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:31:27,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:31:27,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:31:27,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:31:27,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:31:27,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:31:27,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:31:27,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:31:27,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:31:27,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:31:27,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:31:27,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:31:27,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:31:27,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:31:27,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:31:27,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:31:27,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:31:27,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:31:27,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:31:27,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:31:27,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:31:27,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:31:27,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:31:27,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:31:27,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:31:27,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:31:27,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:31:27,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:31:27,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:31:27,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:31:27,506 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:31:27,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:31:27,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:31:27,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:31:27,508 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:31:27,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:31:27,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:31:27,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:31:27,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:31:27,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:31:27,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:31:27,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:31:27,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:31:27,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:31:27,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:31:27,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:31:27,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:31:27,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:31:27,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:31:27,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:31:27,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:31:27,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:31:27,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:31:27,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:31:27,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:31:27,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:31:27,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:31:27,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:31:27,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:31:27,515 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 -> e897fbb7c454b00c722e987e58e3113990876413 [2020-07-28 21:31:27,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:31:27,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:31:27,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:31:27,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:31:27,822 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:31:27,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_pso.opt.i [2020-07-28 21:31:27,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12c3c3a6/e2dac839b3954876a85f9dfb6d33880f/FLAG0d558fb41 [2020-07-28 21:31:28,394 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:31:28,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_pso.opt.i [2020-07-28 21:31:28,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12c3c3a6/e2dac839b3954876a85f9dfb6d33880f/FLAG0d558fb41 [2020-07-28 21:31:28,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12c3c3a6/e2dac839b3954876a85f9dfb6d33880f [2020-07-28 21:31:28,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:31:28,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:31:28,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:31:28,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:31:28,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:31:28,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:31:28" (1/1) ... [2020-07-28 21:31:28,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db7f5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:28, skipping insertion in model container [2020-07-28 21:31:28,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:31:28" (1/1) ... [2020-07-28 21:31:28,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:31:28,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:31:29,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:31:29,301 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:31:29,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:31:29,453 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:31:29,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29 WrapperNode [2020-07-28 21:31:29,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:31:29,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:31:29,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:31:29,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:31:29,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:31:29,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:31:29,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:31:29,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:31:29,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... [2020-07-28 21:31:29,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:31:29,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:31:29,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:31:29,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:31:29,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:31:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:31:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:31:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:31:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:31:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:31:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:31:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:31:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:31:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:31:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:31:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:31:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:31:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:31:29,626 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-07-28 21:31:30,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:31:30,084 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:31:30,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:30 BoogieIcfgContainer [2020-07-28 21:31:30,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:31:30,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:31:30,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:31:30,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:31:30,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:31:28" (1/3) ... [2020-07-28 21:31:30,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca89110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:31:30, skipping insertion in model container [2020-07-28 21:31:30,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:31:29" (2/3) ... [2020-07-28 21:31:30,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca89110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:31:30, skipping insertion in model container [2020-07-28 21:31:30,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:30" (3/3) ... [2020-07-28 21:31:30,096 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-07-28 21:31:30,104 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:31:30,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:31:30,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:31:30,111 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:31:30,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,153 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,154 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,156 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,162 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,173 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,174 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,177 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,177 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:31:30,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:31:30,217 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:31:30,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:31:30,217 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:31:30,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:31:30,218 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:31:30,218 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:31:30,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:31:30,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:31:30,234 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:30,236 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:30,281 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:31:30,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:31:30,287 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:31:30,290 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:31:30,317 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:31:30,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:31:30,318 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:31:30,320 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-07-28 21:31:30,322 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:31:32,089 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-07-28 21:31:32,472 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-07-28 21:31:32,472 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-07-28 21:31:32,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:31:32,514 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-07-28 21:31:32,517 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-07-28 21:31:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:31:32,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:32,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:32,527 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:32,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:32,533 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-07-28 21:31:32,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:32,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289132678] [2020-07-28 21:31:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:32,787 INFO L280 TraceCheckUtils]: 0: Hoare triple {547#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,788 INFO L280 TraceCheckUtils]: 1: Hoare triple {549#(<= ~y~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,789 INFO L280 TraceCheckUtils]: 2: Hoare triple {549#(<= ~y~0 0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,789 INFO L280 TraceCheckUtils]: 3: Hoare triple {549#(<= ~y~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,790 INFO L280 TraceCheckUtils]: 4: Hoare triple {549#(<= ~y~0 0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,791 INFO L280 TraceCheckUtils]: 5: Hoare triple {549#(<= ~y~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,792 INFO L280 TraceCheckUtils]: 6: Hoare triple {549#(<= ~y~0 0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {549#(<= ~y~0 0)} is VALID [2020-07-28 21:31:32,793 INFO L280 TraceCheckUtils]: 7: Hoare triple {549#(<= ~y~0 0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {548#false} is VALID [2020-07-28 21:31:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:32,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289132678] [2020-07-28 21:31:32,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:32,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:32,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174057501] [2020-07-28 21:31:32,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:31:32,805 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:32,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:32,828 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:32,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:32,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:32,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:32,842 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-07-28 21:31:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:32,956 INFO L93 Difference]: Finished difference Result 226 states and 626 transitions. [2020-07-28 21:31:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:32,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:31:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:31:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-07-28 21:31:32,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 28 transitions. [2020-07-28 21:31:33,003 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,039 INFO L225 Difference]: With dead ends: 226 [2020-07-28 21:31:33,039 INFO L226 Difference]: Without dead ends: 178 [2020-07-28 21:31:33,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-28 21:31:33,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,159 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-07-28 21:31:33,169 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:33,169 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:33,170 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:33,170 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:33,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,188 INFO L93 Difference]: Finished difference Result 178 states and 474 transitions. [2020-07-28 21:31:33,188 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:33,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,190 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:33,191 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 178 states. [2020-07-28 21:31:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,209 INFO L93 Difference]: Finished difference Result 178 states and 474 transitions. [2020-07-28 21:31:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:33,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,211 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,211 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:33,212 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-07-28 21:31:33,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 474 transitions. [2020-07-28 21:31:33,228 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 474 transitions. Word has length 8 [2020-07-28 21:31:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:33,228 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 474 transitions. [2020-07-28 21:31:33,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 474 transitions. [2020-07-28 21:31:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:31:33,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:33,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:33,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:31:33,230 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:33,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119474, now seen corresponding path program 1 times [2020-07-28 21:31:33,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:33,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717957022] [2020-07-28 21:31:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:33,313 INFO L280 TraceCheckUtils]: 0: Hoare triple {1490#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,317 INFO L280 TraceCheckUtils]: 1: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,318 INFO L280 TraceCheckUtils]: 2: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,318 INFO L280 TraceCheckUtils]: 3: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,320 INFO L280 TraceCheckUtils]: 4: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,321 INFO L280 TraceCheckUtils]: 6: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,324 INFO L280 TraceCheckUtils]: 7: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {1492#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:31:33,325 INFO L280 TraceCheckUtils]: 8: Hoare triple {1492#(= 0 ~__unbuffered_p0_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1491#false} is VALID [2020-07-28 21:31:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:33,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717957022] [2020-07-28 21:31:33,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:33,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:33,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563193824] [2020-07-28 21:31:33,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:31:33,328 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:33,328 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:33,345 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:33,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:33,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:33,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:33,346 INFO L87 Difference]: Start difference. First operand 178 states and 474 transitions. Second operand 3 states. [2020-07-28 21:31:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,392 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:33,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:33,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:31:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:33,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:31:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:31:33,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:31:33,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,434 INFO L225 Difference]: With dead ends: 168 [2020-07-28 21:31:33,434 INFO L226 Difference]: Without dead ends: 168 [2020-07-28 21:31:33,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:33,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-28 21:31:33,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-07-28 21:31:33,482 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:33,482 INFO L82 GeneralOperation]: Start isEquivalent. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:33,482 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:33,482 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,499 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:33,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,501 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:33,501 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 168 states. [2020-07-28 21:31:33,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,517 INFO L93 Difference]: Finished difference Result 168 states and 441 transitions. [2020-07-28 21:31:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:33,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,518 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,518 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:33,519 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-28 21:31:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 441 transitions. [2020-07-28 21:31:33,533 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 441 transitions. Word has length 9 [2020-07-28 21:31:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:33,534 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 441 transitions. [2020-07-28 21:31:33,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 441 transitions. [2020-07-28 21:31:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:31:33,534 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:33,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:33,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:31:33,535 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:33,535 INFO L82 PathProgramCache]: Analyzing trace with hash 113999627, now seen corresponding path program 1 times [2020-07-28 21:31:33,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:33,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232743255] [2020-07-28 21:31:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:33,618 INFO L280 TraceCheckUtils]: 0: Hoare triple {2335#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,619 INFO L280 TraceCheckUtils]: 1: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,619 INFO L280 TraceCheckUtils]: 2: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,620 INFO L280 TraceCheckUtils]: 3: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,621 INFO L280 TraceCheckUtils]: 4: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,621 INFO L280 TraceCheckUtils]: 5: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,622 INFO L280 TraceCheckUtils]: 6: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,623 INFO L280 TraceCheckUtils]: 7: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,624 INFO L280 TraceCheckUtils]: 8: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {2337#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,625 INFO L280 TraceCheckUtils]: 9: Hoare triple {2337#(= 0 ~__unbuffered_p1_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2336#false} is VALID [2020-07-28 21:31:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:33,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232743255] [2020-07-28 21:31:33,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:33,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:31:33,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24705247] [2020-07-28 21:31:33,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:31:33,627 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:33,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:33,640 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:33,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:33,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:33,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:33,641 INFO L87 Difference]: Start difference. First operand 168 states and 441 transitions. Second operand 3 states. [2020-07-28 21:31:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,684 INFO L93 Difference]: Finished difference Result 162 states and 422 transitions. [2020-07-28 21:31:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:33,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:31:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:31:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:31:33,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:31:33,715 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,718 INFO L225 Difference]: With dead ends: 162 [2020-07-28 21:31:33,719 INFO L226 Difference]: Without dead ends: 162 [2020-07-28 21:31:33,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-28 21:31:33,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-07-28 21:31:33,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:33,757 INFO L82 GeneralOperation]: Start isEquivalent. First operand 162 states. Second operand 162 states. [2020-07-28 21:31:33,757 INFO L74 IsIncluded]: Start isIncluded. First operand 162 states. Second operand 162 states. [2020-07-28 21:31:33,757 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 162 states. [2020-07-28 21:31:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,765 INFO L93 Difference]: Finished difference Result 162 states and 422 transitions. [2020-07-28 21:31:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 422 transitions. [2020-07-28 21:31:33,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,766 INFO L74 IsIncluded]: Start isIncluded. First operand 162 states. Second operand 162 states. [2020-07-28 21:31:33,766 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 162 states. [2020-07-28 21:31:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,775 INFO L93 Difference]: Finished difference Result 162 states and 422 transitions. [2020-07-28 21:31:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 422 transitions. [2020-07-28 21:31:33,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:33,776 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:33,776 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:33,776 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-28 21:31:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 422 transitions. [2020-07-28 21:31:33,784 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 422 transitions. Word has length 10 [2020-07-28 21:31:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:33,784 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 422 transitions. [2020-07-28 21:31:33,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 422 transitions. [2020-07-28 21:31:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:31:33,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:33,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:33,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:31:33,786 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash -760979570, now seen corresponding path program 1 times [2020-07-28 21:31:33,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:33,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979225293] [2020-07-28 21:31:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:33,842 INFO L280 TraceCheckUtils]: 0: Hoare triple {3150#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,843 INFO L280 TraceCheckUtils]: 1: Hoare triple {3152#(= 0 ~x~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,844 INFO L280 TraceCheckUtils]: 2: Hoare triple {3152#(= 0 ~x~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,844 INFO L280 TraceCheckUtils]: 3: Hoare triple {3152#(= 0 ~x~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,845 INFO L280 TraceCheckUtils]: 4: Hoare triple {3152#(= 0 ~x~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,846 INFO L280 TraceCheckUtils]: 5: Hoare triple {3152#(= 0 ~x~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,846 INFO L280 TraceCheckUtils]: 6: Hoare triple {3152#(= 0 ~x~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,847 INFO L280 TraceCheckUtils]: 7: Hoare triple {3152#(= 0 ~x~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,848 INFO L280 TraceCheckUtils]: 8: Hoare triple {3152#(= 0 ~x~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3152#(= 0 ~x~0)} is VALID [2020-07-28 21:31:33,848 INFO L280 TraceCheckUtils]: 9: Hoare triple {3152#(= 0 ~x~0)} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {3153#(= 0 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:31:33,849 INFO L280 TraceCheckUtils]: 10: Hoare triple {3153#(= 0 ~__unbuffered_p1_EAX~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3151#false} is VALID [2020-07-28 21:31:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:33,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979225293] [2020-07-28 21:31:33,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:33,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:33,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808009745] [2020-07-28 21:31:33,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:31:33,851 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:33,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:33,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:33,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:33,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:33,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:33,867 INFO L87 Difference]: Start difference. First operand 162 states and 422 transitions. Second operand 4 states. [2020-07-28 21:31:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:33,945 INFO L93 Difference]: Finished difference Result 202 states and 506 transitions. [2020-07-28 21:31:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:31:33,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:31:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:31:33,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:31:33,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:31:33,991 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:33,993 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:31:33,994 INFO L226 Difference]: Without dead ends: 106 [2020-07-28 21:31:33,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-07-28 21:31:33,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:33,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-07-28 21:31:34,026 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:34,026 INFO L82 GeneralOperation]: Start isEquivalent. First operand 106 states. Second operand 106 states. [2020-07-28 21:31:34,026 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 106 states. [2020-07-28 21:31:34,027 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 106 states. [2020-07-28 21:31:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,032 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-07-28 21:31:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-07-28 21:31:34,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,033 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 106 states. [2020-07-28 21:31:34,033 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 106 states. [2020-07-28 21:31:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,038 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-07-28 21:31:34,039 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-07-28 21:31:34,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,039 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:34,040 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-28 21:31:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-07-28 21:31:34,044 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-07-28 21:31:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:34,045 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-07-28 21:31:34,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-07-28 21:31:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:31:34,046 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:34,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:34,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:31:34,047 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:34,047 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-07-28 21:31:34,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:34,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158530901] [2020-07-28 21:31:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:34,100 INFO L280 TraceCheckUtils]: 0: Hoare triple {3784#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {3786#(<= ~y~0 0)} is VALID [2020-07-28 21:31:34,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {3786#(<= ~y~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3786#(<= ~y~0 0)} is VALID [2020-07-28 21:31:34,103 INFO L280 TraceCheckUtils]: 2: Hoare triple {3786#(<= ~y~0 0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,104 INFO L280 TraceCheckUtils]: 3: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,105 INFO L280 TraceCheckUtils]: 4: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,105 INFO L280 TraceCheckUtils]: 5: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,106 INFO L280 TraceCheckUtils]: 6: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,107 INFO L280 TraceCheckUtils]: 7: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,108 INFO L280 TraceCheckUtils]: 8: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,109 INFO L280 TraceCheckUtils]: 9: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,110 INFO L280 TraceCheckUtils]: 10: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {3787#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:31:34,111 INFO L280 TraceCheckUtils]: 11: Hoare triple {3787#(<= ~__unbuffered_p0_EAX~0 0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3785#false} is VALID [2020-07-28 21:31:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:34,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158530901] [2020-07-28 21:31:34,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:34,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:34,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256767169] [2020-07-28 21:31:34,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:34,116 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:34,116 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:34,131 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:34,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:34,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:34,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:34,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:34,132 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-07-28 21:31:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,222 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-07-28 21:31:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:31:34,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:34,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:31:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:31:34,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 33 transitions. [2020-07-28 21:31:34,265 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:34,267 INFO L225 Difference]: With dead ends: 138 [2020-07-28 21:31:34,267 INFO L226 Difference]: Without dead ends: 60 [2020-07-28 21:31:34,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:34,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-28 21:31:34,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-07-28 21:31:34,286 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:34,287 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:34,287 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:34,287 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,296 INFO L93 Difference]: Finished difference Result 60 states and 129 transitions. [2020-07-28 21:31:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:34,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,297 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:34,297 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 60 states. [2020-07-28 21:31:34,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,299 INFO L93 Difference]: Finished difference Result 60 states and 129 transitions. [2020-07-28 21:31:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:34,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,301 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,301 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:34,301 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-28 21:31:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-07-28 21:31:34,303 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-07-28 21:31:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:34,304 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-07-28 21:31:34,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-07-28 21:31:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:31:34,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:34,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:34,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:31:34,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:34,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-07-28 21:31:34,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:34,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024029927] [2020-07-28 21:31:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:34,476 INFO L280 TraceCheckUtils]: 0: Hoare triple {4170#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,478 INFO L280 TraceCheckUtils]: 1: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,482 INFO L280 TraceCheckUtils]: 2: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,484 INFO L280 TraceCheckUtils]: 3: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,484 INFO L280 TraceCheckUtils]: 4: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,485 INFO L280 TraceCheckUtils]: 5: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4172#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,489 INFO L280 TraceCheckUtils]: 6: Hoare triple {4172#(= 0 ~__unbuffered_cnt~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,490 INFO L280 TraceCheckUtils]: 7: Hoare triple {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,492 INFO L280 TraceCheckUtils]: 8: Hoare triple {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,493 INFO L280 TraceCheckUtils]: 9: Hoare triple {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,494 INFO L280 TraceCheckUtils]: 10: Hoare triple {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,497 INFO L280 TraceCheckUtils]: 11: Hoare triple {4173#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4171#false} is VALID [2020-07-28 21:31:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:34,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024029927] [2020-07-28 21:31:34,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:34,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:34,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714497416] [2020-07-28 21:31:34,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:34,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:34,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:31:34,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:34,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:31:34,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:31:34,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:31:34,519 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-07-28 21:31:34,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,635 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-07-28 21:31:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:31:34,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:31:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:31:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:31:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:31:34,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-28 21:31:34,705 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:34,707 INFO L225 Difference]: With dead ends: 73 [2020-07-28 21:31:34,707 INFO L226 Difference]: Without dead ends: 52 [2020-07-28 21:31:34,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-28 21:31:34,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:34,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-07-28 21:31:34,733 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:34,733 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:34,733 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:34,734 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,736 INFO L93 Difference]: Finished difference Result 52 states and 101 transitions. [2020-07-28 21:31:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:34,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,738 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,738 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:34,738 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 52 states. [2020-07-28 21:31:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:34,741 INFO L93 Difference]: Finished difference Result 52 states and 101 transitions. [2020-07-28 21:31:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:34,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:34,742 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:34,742 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:34,742 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-28 21:31:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-07-28 21:31:34,745 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-07-28 21:31:34,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:34,745 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-07-28 21:31:34,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:31:34,746 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-07-28 21:31:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:31:34,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:34,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:34,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:31:34,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:34,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-07-28 21:31:34,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:34,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999114839] [2020-07-28 21:31:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:34,905 INFO L280 TraceCheckUtils]: 0: Hoare triple {4459#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,907 INFO L280 TraceCheckUtils]: 1: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,910 INFO L280 TraceCheckUtils]: 2: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,912 INFO L280 TraceCheckUtils]: 3: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,913 INFO L280 TraceCheckUtils]: 4: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,914 INFO L280 TraceCheckUtils]: 5: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,915 INFO L280 TraceCheckUtils]: 6: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,916 INFO L280 TraceCheckUtils]: 7: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,917 INFO L280 TraceCheckUtils]: 8: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4461#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:34,918 INFO L280 TraceCheckUtils]: 9: Hoare triple {4461#(= 0 ~__unbuffered_cnt~0)} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4462#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:31:34,920 INFO L280 TraceCheckUtils]: 10: Hoare triple {4462#(<= ~__unbuffered_cnt~0 1)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4463#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,922 INFO L280 TraceCheckUtils]: 11: Hoare triple {4463#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4463#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:34,924 INFO L280 TraceCheckUtils]: 12: Hoare triple {4463#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4460#false} is VALID [2020-07-28 21:31:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:34,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999114839] [2020-07-28 21:31:34,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:34,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:31:34,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282135944] [2020-07-28 21:31:34,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:31:34,927 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:34,927 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:31:34,961 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:34,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:31:34,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:34,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:31:34,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:31:34,963 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-07-28 21:31:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,145 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-07-28 21:31:35,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:31:35,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:31:35,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:31:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2020-07-28 21:31:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:31:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2020-07-28 21:31:35,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 43 transitions. [2020-07-28 21:31:35,217 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:35,217 INFO L225 Difference]: With dead ends: 53 [2020-07-28 21:31:35,218 INFO L226 Difference]: Without dead ends: 38 [2020-07-28 21:31:35,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:31:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-28 21:31:35,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-28 21:31:35,228 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:35,228 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:35,228 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:35,228 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,230 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2020-07-28 21:31:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:35,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,230 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:35,230 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-28 21:31:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,231 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2020-07-28 21:31:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:35,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,232 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,232 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:35,232 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-28 21:31:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-07-28 21:31:35,233 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-07-28 21:31:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:35,234 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-07-28 21:31:35,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:31:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-07-28 21:31:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:31:35,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:35,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:35,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:31:35,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:35,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-07-28 21:31:35,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:35,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248436229] [2020-07-28 21:31:35,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:35,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {4673#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,365 INFO L280 TraceCheckUtils]: 2: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,367 INFO L280 TraceCheckUtils]: 3: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,367 INFO L280 TraceCheckUtils]: 4: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,368 INFO L280 TraceCheckUtils]: 5: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,369 INFO L280 TraceCheckUtils]: 6: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,369 INFO L280 TraceCheckUtils]: 7: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,370 INFO L280 TraceCheckUtils]: 8: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4675#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:31:35,370 INFO L280 TraceCheckUtils]: 9: Hoare triple {4675#(= 0 ~__unbuffered_cnt~0)} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4676#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:31:35,371 INFO L280 TraceCheckUtils]: 10: Hoare triple {4676#(<= ~__unbuffered_cnt~0 1)} [204] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4677#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:31:35,373 INFO L280 TraceCheckUtils]: 11: Hoare triple {4677#(<= ~__unbuffered_cnt~0 2)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4678#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:35,374 INFO L280 TraceCheckUtils]: 12: Hoare triple {4678#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4678#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:31:35,375 INFO L280 TraceCheckUtils]: 13: Hoare triple {4678#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4674#false} is VALID [2020-07-28 21:31:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:35,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248436229] [2020-07-28 21:31:35,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:35,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:31:35,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765674424] [2020-07-28 21:31:35,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:31:35,377 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:35,377 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:31:35,394 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:35,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:31:35,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:35,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:31:35,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:31:35,395 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-07-28 21:31:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,542 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-07-28 21:31:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:31:35,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:31:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:35,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:31:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2020-07-28 21:31:35,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:31:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2020-07-28 21:31:35,545 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 36 transitions. [2020-07-28 21:31:35,588 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:35,589 INFO L225 Difference]: With dead ends: 35 [2020-07-28 21:31:35,589 INFO L226 Difference]: Without dead ends: 29 [2020-07-28 21:31:35,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:31:35,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-28 21:31:35,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:31:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-28 21:31:35,597 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:35,597 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:35,597 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:35,597 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:35,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,603 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:31:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:35,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,604 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:35,604 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-28 21:31:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,604 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-07-28 21:31:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:35,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,605 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,605 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:35,605 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-28 21:31:35,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-07-28 21:31:35,606 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-07-28 21:31:35,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:35,606 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-07-28 21:31:35,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:31:35,606 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-07-28 21:31:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:31:35,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:31:35,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:31:35,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:31:35,607 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:31:35,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:31:35,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-07-28 21:31:35,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:31:35,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071508618] [2020-07-28 21:31:35,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:31:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:31:35,645 INFO L280 TraceCheckUtils]: 0: Hoare triple {4834#true} [217] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_52| 0 0))) (and (= 0 v_~main$tmp_guard1~0_27) (= 0 |v_ULTIMATE.start_main_~#t1994~0.offset_15|) (= 0 v_~__unbuffered_p1_EAX~0_28) (= 0 v_~x~0_16) (= v_~__unbuffered_cnt~0_107 0) (= 0 v_~__unbuffered_p0_EAX~0_32) (= 0 v_~main$tmp_guard0~0_32) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20|)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t1994~0.base_20|) |v_ULTIMATE.start_main_~#t1994~0.offset_15| 0)) |v_#memory_int_15|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t1994~0.base_20| 4)) (= |v_#valid_50| (store .cse0 |v_ULTIMATE.start_main_~#t1994~0.base_20| 1)) (= 0 |v_#NULL.offset_4|) (= 0 v_~y~0_39) (< 0 |v_#StackHeapBarrier_15|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1994~0.base_20|) (= 0 |v_#NULL.base_4|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_15|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_24|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_27, ULTIMATE.start_main_~#t1994~0.base=|v_ULTIMATE.start_main_~#t1994~0.base_20|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_15|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_32, ULTIMATE.start_main_~#t1994~0.offset=|v_ULTIMATE.start_main_~#t1994~0.offset_15|, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_13|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_32, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_28, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_15|, #valid=|v_#valid_50|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_107, ~y~0=v_~y~0_39, ~x~0=v_~x~0_16, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1994~0.base, ULTIMATE.start_main_~#t1995~0.base, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t1994~0.offset, #NULL.base, ULTIMATE.start_main_~#t1996~0.offset, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t1995~0.offset] {4834#true} is VALID [2020-07-28 21:31:35,645 INFO L280 TraceCheckUtils]: 1: Hoare triple {4834#true} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4834#true} is VALID [2020-07-28 21:31:35,645 INFO L280 TraceCheckUtils]: 2: Hoare triple {4834#true} [203] L763-1-->L765: Formula: (and (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t1995~0.base_11| 1)) (= 0 |v_ULTIMATE.start_main_~#t1995~0.offset_10|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1995~0.base_11|) |v_ULTIMATE.start_main_~#t1995~0.offset_10| 1)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t1995~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t1995~0.base_11|)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t1995~0.base_11| 4))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_37|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t1995~0.base=|v_ULTIMATE.start_main_~#t1995~0.base_11|, ULTIMATE.start_main_~#t1995~0.offset=|v_ULTIMATE.start_main_~#t1995~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1995~0.base, ULTIMATE.start_main_~#t1995~0.offset] {4834#true} is VALID [2020-07-28 21:31:35,646 INFO L280 TraceCheckUtils]: 3: Hoare triple {4834#true} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4834#true} is VALID [2020-07-28 21:31:35,646 INFO L280 TraceCheckUtils]: 4: Hoare triple {4834#true} [202] L765-1-->L767: Formula: (and (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) |v_ULTIMATE.start_main_~#t1996~0.offset_11| 2)) |v_#memory_int_9|) (= 0 |v_ULTIMATE.start_main_~#t1996~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1996~0.base_13|) (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t1996~0.base_13| 4) |v_#length_15|) (not (= 0 |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t1996~0.base_13| 1))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1996~0.base=|v_ULTIMATE.start_main_~#t1996~0.base_13|, ULTIMATE.start_main_~#t1996~0.offset=|v_ULTIMATE.start_main_~#t1996~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1996~0.base, ULTIMATE.start_main_~#t1996~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4834#true} is VALID [2020-07-28 21:31:35,646 INFO L280 TraceCheckUtils]: 5: Hoare triple {4834#true} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4834#true} is VALID [2020-07-28 21:31:35,647 INFO L280 TraceCheckUtils]: 6: Hoare triple {4834#true} [186] P2ENTRY-->L743: Formula: (and (= 2 v_~y~0_8) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4834#true} is VALID [2020-07-28 21:31:35,647 INFO L280 TraceCheckUtils]: 7: Hoare triple {4834#true} [179] P0ENTRY-->L713: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~__unbuffered_p0_EAX~0_5 v_~y~0_7)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_5, P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4834#true} is VALID [2020-07-28 21:31:35,647 INFO L280 TraceCheckUtils]: 8: Hoare triple {4834#true} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4834#true} is VALID [2020-07-28 21:31:35,648 INFO L280 TraceCheckUtils]: 9: Hoare triple {4834#true} [199] L743-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_79 (+ v_~__unbuffered_cnt~0_80 1)) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4834#true} is VALID [2020-07-28 21:31:35,648 INFO L280 TraceCheckUtils]: 10: Hoare triple {4834#true} [204] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4834#true} is VALID [2020-07-28 21:31:35,648 INFO L280 TraceCheckUtils]: 11: Hoare triple {4834#true} [189] P1ENTRY-->L728: Formula: (and (= v_~__unbuffered_p1_EAX~0_5 v_~x~0_4) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_5, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_4} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4834#true} is VALID [2020-07-28 21:31:35,649 INFO L280 TraceCheckUtils]: 12: Hoare triple {4834#true} [150] L728-->L731: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4836#(= 1 ~y~0)} is VALID [2020-07-28 21:31:35,650 INFO L280 TraceCheckUtils]: 13: Hoare triple {4836#(= 1 ~y~0)} [200] L731-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_85 (+ v_~__unbuffered_cnt~0_86 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4836#(= 1 ~y~0)} is VALID [2020-07-28 21:31:35,651 INFO L280 TraceCheckUtils]: 14: Hoare triple {4836#(= 1 ~y~0)} [198] L767-1-->L771: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_74))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17)))) (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4836#(= 1 ~y~0)} is VALID [2020-07-28 21:31:35,652 INFO L280 TraceCheckUtils]: 15: Hoare triple {4836#(= 1 ~y~0)} [219] L771-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_22) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_19| (mod v_~main$tmp_guard1~0_32 256)) (= 1 v_~__unbuffered_p1_EAX~0_33) (= 2 v_~__unbuffered_p0_EAX~0_39) (= 0 v_~main$tmp_guard1~0_32) (= 2 v_~y~0_44)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~y~0=v_~y~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_22|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_22, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_33, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~y~0=v_~y~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_19|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4835#false} is VALID [2020-07-28 21:31:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:31:35,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071508618] [2020-07-28 21:31:35,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:31:35,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:31:35,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513600563] [2020-07-28 21:31:35,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:31:35,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:31:35,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:31:35,672 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:35,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:31:35,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:31:35,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:31:35,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:35,673 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-07-28 21:31:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,697 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-07-28 21:31:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:31:35,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:31:35,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:31:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:31:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:31:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:31:35,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2020-07-28 21:31:35,718 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:31:35,719 INFO L225 Difference]: With dead ends: 28 [2020-07-28 21:31:35,719 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:31:35,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:31:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:31:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:31:35,719 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:31:35,720 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:35,720 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:35,720 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:35,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,721 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:31:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:35,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,721 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,721 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:35,721 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:31:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:31:35,722 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:31:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:35,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,722 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:31:35,722 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:31:35,723 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:31:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:31:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:31:35,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:31:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:31:35,723 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:31:35,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:31:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:31:35,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:31:35,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:31:35,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:31:35 BasicIcfg [2020-07-28 21:31:35,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:31:35,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:31:35,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:31:35,729 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:31:35,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:31:30" (3/4) ... [2020-07-28 21:31:35,733 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:31:35,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:31:35,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:31:35,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:31:35,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:31:35,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:31:35,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:31:35,791 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:31:35,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:31:35,794 INFO L168 Benchmark]: Toolchain (without parser) took 7066.54 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.7 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -259.6 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:35,794 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:31:35,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:35,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:31:35,796 INFO L168 Benchmark]: Boogie Preprocessor took 30.99 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 21:31:35,797 INFO L168 Benchmark]: RCFGBuilder took 539.99 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:35,797 INFO L168 Benchmark]: TraceAbstraction took 5638.95 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -152.4 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:31:35,798 INFO L168 Benchmark]: Witness Printer took 62.11 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:31:35,801 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 0.30 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 723.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.99 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 539.99 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5638.95 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -152.4 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * Witness Printer took 62.11 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 634 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 141 SDtfs, 105 SDslu, 144 SDs, 0 SdLazy, 104 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3492 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...