./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f38161b250f3e772743e2b385566bf9c8df6e0ec ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:37:51,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:37:51,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:37:51,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:37:52,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:37:52,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:37:52,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:37:52,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:37:52,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:37:52,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:37:52,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:37:52,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:37:52,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:37:52,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:37:52,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:37:52,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:37:52,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:37:52,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:37:52,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:37:52,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:37:52,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:37:52,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:37:52,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:37:52,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:37:52,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:37:52,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:37:52,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:37:52,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:37:52,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:37:52,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:37:52,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:37:52,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:37:52,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:37:52,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:37:52,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:37:52,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:37:52,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:37:52,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:37:52,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:37:52,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:37:52,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:37:52,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:37:52,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:37:52,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:37:52,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:37:52,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:37:52,056 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:37:52,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:37:52,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:37:52,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:37:52,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:37:52,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:37:52,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:37:52,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:37:52,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:37:52,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:37:52,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:37:52,059 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:37:52,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:37:52,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:37:52,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:37:52,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:37:52,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:37:52,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:37:52,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:37:52,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:37:52,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:37:52,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:37:52,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:37:52,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:37:52,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:37:52,063 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 -> f38161b250f3e772743e2b385566bf9c8df6e0ec [2020-07-28 21:37:52,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:37:52,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:37:52,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:37:52,378 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:37:52,378 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:37:52,379 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2020-07-28 21:37:52,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e869b603d/1c0fc075653643b5b8d7a00bda0bca0c/FLAG5f64d2c23 [2020-07-28 21:37:52,952 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:37:52,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2020-07-28 21:37:52,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e869b603d/1c0fc075653643b5b8d7a00bda0bca0c/FLAG5f64d2c23 [2020-07-28 21:37:53,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e869b603d/1c0fc075653643b5b8d7a00bda0bca0c [2020-07-28 21:37:53,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:37:53,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:37:53,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:37:53,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:37:53,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:37:53,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:53,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53, skipping insertion in model container [2020-07-28 21:37:53,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:53,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:37:53,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:37:53,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:37:53,807 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:37:53,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:37:53,956 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:37:53,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53 WrapperNode [2020-07-28 21:37:53,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:37:53,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:37:53,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:37:53,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:37:53,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:53,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:37:54,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:37:54,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:37:54,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:37:54,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (1/1) ... [2020-07-28 21:37:54,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:37:54,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:37:54,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:37:54,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:37:54,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (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 21:37:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:37:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:37:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:37:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:37:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:37:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:37:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:37:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:37:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:37:54,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:37:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:37:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:37:54,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:37:54,127 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 21:37:54,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:37:54,587 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:37:54,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:37:54 BoogieIcfgContainer [2020-07-28 21:37:54,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:37:54,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:37:54,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:37:54,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:37:54,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:37:53" (1/3) ... [2020-07-28 21:37:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75451e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:37:54, skipping insertion in model container [2020-07-28 21:37:54,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:37:53" (2/3) ... [2020-07-28 21:37:54,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75451e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:37:54, skipping insertion in model container [2020-07-28 21:37:54,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:37:54" (3/3) ... [2020-07-28 21:37:54,600 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-07-28 21:37:54,611 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:37:54,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:37:54,619 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:37:54,620 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:37:54,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,654 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,672 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,672 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,672 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:37:54,685 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:37:54,702 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:37:54,703 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:37:54,703 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:37:54,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:37:54,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:37:54,703 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:37:54,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:37:54,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:37:54,719 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:37:54,721 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:37:54,779 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:37:54,780 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:37:54,787 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 45 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 21:37:54,791 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:37:54,825 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:37:54,825 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:37:54,826 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 45 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 21:37:54,828 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:37:54,830 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:37:56,735 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-07-28 21:37:56,847 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2244 [2020-07-28 21:37:56,847 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:37:56,853 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:37:56,894 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-07-28 21:37:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-07-28 21:37:56,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:37:56,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:56,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:56,914 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:56,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:56,923 INFO L82 PathProgramCache]: Analyzing trace with hash 278619754, now seen corresponding path program 1 times [2020-07-28 21:37:56,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:56,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931653306] [2020-07-28 21:37:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:57,160 INFO L280 TraceCheckUtils]: 0: Hoare triple {627#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {627#true} is VALID [2020-07-28 21:37:57,161 INFO L280 TraceCheckUtils]: 1: Hoare triple {627#true} [160] L765-->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] {627#true} is VALID [2020-07-28 21:37:57,162 INFO L280 TraceCheckUtils]: 2: Hoare triple {627#true} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {627#true} is VALID [2020-07-28 21:37:57,162 INFO L280 TraceCheckUtils]: 3: Hoare triple {627#true} [162] L767-->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] {627#true} is VALID [2020-07-28 21:37:57,163 INFO L280 TraceCheckUtils]: 4: Hoare triple {627#true} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {627#true} is VALID [2020-07-28 21:37:57,163 INFO L280 TraceCheckUtils]: 5: Hoare triple {627#true} [164] L769-->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] {627#true} is VALID [2020-07-28 21:37:57,164 INFO L280 TraceCheckUtils]: 6: Hoare triple {627#true} [216] L769-1-->L779: Formula: false InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_31|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_20, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {628#false} is VALID [2020-07-28 21:37:57,165 INFO L280 TraceCheckUtils]: 7: Hoare triple {628#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {628#false} is VALID [2020-07-28 21:37:57,166 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 21:37:57,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931653306] [2020-07-28 21:37:57,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:57,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:37:57,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171682492] [2020-07-28 21:37:57,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:37:57,178 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:57,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:37:57,219 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 21:37:57,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:37:57,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:57,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:37:57,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:37:57,238 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-07-28 21:37:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:57,379 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-07-28 21:37:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:37:57,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:37:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:37:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 19 transitions. [2020-07-28 21:37:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:37:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 19 transitions. [2020-07-28 21:37:57,387 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 19 transitions. [2020-07-28 21:37:57,424 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:57,463 INFO L225 Difference]: With dead ends: 274 [2020-07-28 21:37:57,464 INFO L226 Difference]: Without dead ends: 226 [2020-07-28 21:37:57,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:37:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-28 21:37:57,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,530 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,531 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,532 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,533 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,534 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,535 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,536 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,537 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,538 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,539 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,540 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,541 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,542 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,543 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,544 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,545 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,546 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,547 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,548 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,549 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,550 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,551 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,552 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,553 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,554 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,555 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,556 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,557 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,558 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,559 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,560 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,561 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,562 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,563 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,564 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,565 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,566 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,567 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,568 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,569 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,570 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,571 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,572 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,573 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-07-28 21:37:57,578 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:57,578 INFO L82 GeneralOperation]: Start isEquivalent. First operand 226 states. Second operand 226 states. [2020-07-28 21:37:57,579 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:37:57,579 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:37:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:57,599 INFO L93 Difference]: Finished difference Result 226 states and 634 transitions. [2020-07-28 21:37:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:37:57,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:57,602 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:57,603 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:37:57,603 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:37:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:57,626 INFO L93 Difference]: Finished difference Result 226 states and 634 transitions. [2020-07-28 21:37:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:37:57,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:57,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:57,629 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:57,629 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-28 21:37:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-07-28 21:37:57,651 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-07-28 21:37:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:57,651 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-07-28 21:37:57,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:37:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-07-28 21:37:57,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:37:57,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:57,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:57,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:37:57,654 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:57,654 INFO L82 PathProgramCache]: Analyzing trace with hash 47263938, now seen corresponding path program 1 times [2020-07-28 21:37:57,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:57,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35675535] [2020-07-28 21:37:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:57,808 INFO L280 TraceCheckUtils]: 0: Hoare triple {1809#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,811 INFO L280 TraceCheckUtils]: 1: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [160] L765-->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] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,812 INFO L280 TraceCheckUtils]: 2: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,812 INFO L280 TraceCheckUtils]: 3: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [162] L767-->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] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,813 INFO L280 TraceCheckUtils]: 4: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,814 INFO L280 TraceCheckUtils]: 5: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [164] L769-->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] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,815 INFO L280 TraceCheckUtils]: 6: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1811#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:57,816 INFO L280 TraceCheckUtils]: 7: Hoare triple {1811#(= 0 ~__unbuffered_p2_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1812#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:37:57,817 INFO L280 TraceCheckUtils]: 8: Hoare triple {1812#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {1810#false} is VALID [2020-07-28 21:37:57,818 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 21:37:57,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35675535] [2020-07-28 21:37:57,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:57,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:37:57,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15793645] [2020-07-28 21:37:57,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:37:57,820 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:57,820 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:37:57,836 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 21:37:57,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:37:57,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:57,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:37:57,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:37:57,838 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-07-28 21:37:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:57,973 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-07-28 21:37:57,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:37:57,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:37:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:57,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-07-28 21:37:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-07-28 21:37:57,976 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 39 transitions. [2020-07-28 21:37:58,029 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:58,035 INFO L225 Difference]: With dead ends: 250 [2020-07-28 21:37:58,036 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:37:58,036 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 21:37:58,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:37:58,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,049 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:37:58,094 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:58,094 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:37:58,095 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:37:58,095 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:37:58,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,107 INFO L93 Difference]: Finished difference Result 202 states and 552 transitions. [2020-07-28 21:37:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-07-28 21:37:58,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,108 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,108 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:37:58,109 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:37:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,121 INFO L93 Difference]: Finished difference Result 202 states and 552 transitions. [2020-07-28 21:37:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-07-28 21:37:58,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:58,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:37:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-07-28 21:37:58,134 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-07-28 21:37:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:58,134 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-07-28 21:37:58,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:37:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-07-28 21:37:58,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:37:58,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:58,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:58,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:37:58,136 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:58,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:58,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1465143248, now seen corresponding path program 1 times [2020-07-28 21:37:58,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:58,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956480001] [2020-07-28 21:37:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:58,216 INFO L280 TraceCheckUtils]: 0: Hoare triple {2875#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {2877#(= 0 ~y~0)} [160] L765-->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] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,217 INFO L280 TraceCheckUtils]: 2: Hoare triple {2877#(= 0 ~y~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,218 INFO L280 TraceCheckUtils]: 3: Hoare triple {2877#(= 0 ~y~0)} [162] L767-->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] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,219 INFO L280 TraceCheckUtils]: 4: Hoare triple {2877#(= 0 ~y~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,219 INFO L280 TraceCheckUtils]: 5: Hoare triple {2877#(= 0 ~y~0)} [164] L769-->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] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,220 INFO L280 TraceCheckUtils]: 6: Hoare triple {2877#(= 0 ~y~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,221 INFO L280 TraceCheckUtils]: 7: Hoare triple {2877#(= 0 ~y~0)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2877#(= 0 ~y~0)} is VALID [2020-07-28 21:37:58,222 INFO L280 TraceCheckUtils]: 8: Hoare triple {2877#(= 0 ~y~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2878#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:37:58,223 INFO L280 TraceCheckUtils]: 9: Hoare triple {2878#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {2876#false} is VALID [2020-07-28 21:37:58,224 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 21:37:58,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956480001] [2020-07-28 21:37:58,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:58,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:37:58,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031549717] [2020-07-28 21:37:58,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:37:58,225 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:58,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:37:58,240 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 21:37:58,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:37:58,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:58,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:37:58,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:37:58,241 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 4 states. [2020-07-28 21:37:58,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,330 INFO L93 Difference]: Finished difference Result 232 states and 608 transitions. [2020-07-28 21:37:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:37:58,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:37:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:37:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-28 21:37:58,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-28 21:37:58,381 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 21:37:58,386 INFO L225 Difference]: With dead ends: 232 [2020-07-28 21:37:58,386 INFO L226 Difference]: Without dead ends: 196 [2020-07-28 21:37:58,386 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 21:37:58,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-28 21:37:58,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-07-28 21:37:58,441 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:58,441 INFO L82 GeneralOperation]: Start isEquivalent. First operand 196 states. Second operand 196 states. [2020-07-28 21:37:58,441 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 196 states. [2020-07-28 21:37:58,441 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 196 states. [2020-07-28 21:37:58,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,452 INFO L93 Difference]: Finished difference Result 196 states and 530 transitions. [2020-07-28 21:37:58,452 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:37:58,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,453 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,453 INFO L74 IsIncluded]: Start isIncluded. First operand 196 states. Second operand 196 states. [2020-07-28 21:37:58,453 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 196 states. [2020-07-28 21:37:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,464 INFO L93 Difference]: Finished difference Result 196 states and 530 transitions. [2020-07-28 21:37:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:37:58,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,465 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:58,465 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-07-28 21:37:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 530 transitions. [2020-07-28 21:37:58,476 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 530 transitions. Word has length 10 [2020-07-28 21:37:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:58,476 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 530 transitions. [2020-07-28 21:37:58,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:37:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 530 transitions. [2020-07-28 21:37:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:37:58,477 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:58,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:58,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:37:58,477 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:58,478 INFO L82 PathProgramCache]: Analyzing trace with hash 462854661, now seen corresponding path program 1 times [2020-07-28 21:37:58,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:58,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416722092] [2020-07-28 21:37:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:58,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {3899#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,559 INFO L280 TraceCheckUtils]: 1: Hoare triple {3901#(= 0 ~x~0)} [160] L765-->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] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,559 INFO L280 TraceCheckUtils]: 2: Hoare triple {3901#(= 0 ~x~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,560 INFO L280 TraceCheckUtils]: 3: Hoare triple {3901#(= 0 ~x~0)} [162] L767-->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] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,561 INFO L280 TraceCheckUtils]: 4: Hoare triple {3901#(= 0 ~x~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,561 INFO L280 TraceCheckUtils]: 5: Hoare triple {3901#(= 0 ~x~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,562 INFO L280 TraceCheckUtils]: 6: Hoare triple {3901#(= 0 ~x~0)} [164] L769-->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] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,563 INFO L280 TraceCheckUtils]: 7: Hoare triple {3901#(= 0 ~x~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3901#(= 0 ~x~0)} is VALID [2020-07-28 21:37:58,563 INFO L280 TraceCheckUtils]: 8: Hoare triple {3901#(= 0 ~x~0)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3902#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:37:58,565 INFO L280 TraceCheckUtils]: 9: Hoare triple {3902#(= 0 ~__unbuffered_p2_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3903#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:37:58,566 INFO L280 TraceCheckUtils]: 10: Hoare triple {3903#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {3900#false} is VALID [2020-07-28 21:37:58,566 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 21:37:58,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416722092] [2020-07-28 21:37:58,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:58,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:37:58,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724935298] [2020-07-28 21:37:58,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:37:58,568 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:58,568 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:37:58,581 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 21:37:58,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:37:58,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:58,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:37:58,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:37:58,582 INFO L87 Difference]: Start difference. First operand 196 states and 530 transitions. Second operand 5 states. [2020-07-28 21:37:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,736 INFO L93 Difference]: Finished difference Result 255 states and 672 transitions. [2020-07-28 21:37:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:37:58,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:37:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:37:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2020-07-28 21:37:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:37:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 49 transitions. [2020-07-28 21:37:58,746 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 49 transitions. [2020-07-28 21:37:58,807 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:58,811 INFO L225 Difference]: With dead ends: 255 [2020-07-28 21:37:58,812 INFO L226 Difference]: Without dead ends: 150 [2020-07-28 21:37:58,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 21:37:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-28 21:37:58,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:58,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-28 21:37:58,853 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:58,853 INFO L82 GeneralOperation]: Start isEquivalent. First operand 150 states. Second operand 150 states. [2020-07-28 21:37:58,853 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 150 states. [2020-07-28 21:37:58,853 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 150 states. [2020-07-28 21:37:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,867 INFO L93 Difference]: Finished difference Result 150 states and 378 transitions. [2020-07-28 21:37:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:37:58,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,868 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 150 states. [2020-07-28 21:37:58,868 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 150 states. [2020-07-28 21:37:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:58,873 INFO L93 Difference]: Finished difference Result 150 states and 378 transitions. [2020-07-28 21:37:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:37:58,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:58,874 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:58,874 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:58,874 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-28 21:37:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 378 transitions. [2020-07-28 21:37:58,878 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 378 transitions. Word has length 11 [2020-07-28 21:37:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:58,879 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 378 transitions. [2020-07-28 21:37:58,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:37:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 378 transitions. [2020-07-28 21:37:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:37:58,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:58,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:58,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:37:58,880 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:58,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:58,881 INFO L82 PathProgramCache]: Analyzing trace with hash 266026162, now seen corresponding path program 1 times [2020-07-28 21:37:58,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:58,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991449417] [2020-07-28 21:37:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:59,012 INFO L280 TraceCheckUtils]: 0: Hoare triple {4767#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,013 INFO L280 TraceCheckUtils]: 1: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,014 INFO L280 TraceCheckUtils]: 2: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,014 INFO L280 TraceCheckUtils]: 3: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,015 INFO L280 TraceCheckUtils]: 4: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,022 INFO L280 TraceCheckUtils]: 5: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,022 INFO L280 TraceCheckUtils]: 6: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,023 INFO L280 TraceCheckUtils]: 7: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [164] L769-->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] {4769#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,024 INFO L280 TraceCheckUtils]: 8: Hoare triple {4769#(= 0 ~__unbuffered_cnt~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4770#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:37:59,025 INFO L280 TraceCheckUtils]: 9: Hoare triple {4770#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4770#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:37:59,026 INFO L280 TraceCheckUtils]: 10: Hoare triple {4770#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4768#false} is VALID [2020-07-28 21:37:59,026 INFO L280 TraceCheckUtils]: 11: Hoare triple {4768#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4768#false} is VALID [2020-07-28 21:37:59,026 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 21:37:59,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991449417] [2020-07-28 21:37:59,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:59,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:37:59,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75419276] [2020-07-28 21:37:59,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:37:59,028 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:59,028 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:37:59,049 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 21:37:59,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:37:59,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:59,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:37:59,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:37:59,051 INFO L87 Difference]: Start difference. First operand 150 states and 378 transitions. Second operand 4 states. [2020-07-28 21:37:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,188 INFO L93 Difference]: Finished difference Result 164 states and 376 transitions. [2020-07-28 21:37:59,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:37:59,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:37:59,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:59,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:37:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:37:59,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 48 transitions. [2020-07-28 21:37:59,258 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:59,261 INFO L225 Difference]: With dead ends: 164 [2020-07-28 21:37:59,261 INFO L226 Difference]: Without dead ends: 128 [2020-07-28 21:37:59,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:37:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-28 21:37:59,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,269 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,270 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,271 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,272 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,273 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,274 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,275 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,276 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,277 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,278 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,279 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,280 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,281 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,282 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,283 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,284 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-28 21:37:59,299 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:59,300 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-28 21:37:59,300 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-28 21:37:59,300 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-28 21:37:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,304 INFO L93 Difference]: Finished difference Result 128 states and 293 transitions. [2020-07-28 21:37:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:37:59,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,305 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,305 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-28 21:37:59,305 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-28 21:37:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,309 INFO L93 Difference]: Finished difference Result 128 states and 293 transitions. [2020-07-28 21:37:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:37:59,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,310 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:59,310 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:59,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-28 21:37:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 293 transitions. [2020-07-28 21:37:59,314 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 293 transitions. Word has length 12 [2020-07-28 21:37:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:59,314 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 293 transitions. [2020-07-28 21:37:59,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:37:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 293 transitions. [2020-07-28 21:37:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:37:59,315 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:59,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:59,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:37:59,315 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:59,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:59,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1292455845, now seen corresponding path program 1 times [2020-07-28 21:37:59,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:59,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083374451] [2020-07-28 21:37:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:59,386 INFO L280 TraceCheckUtils]: 0: Hoare triple {5451#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {5453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,387 INFO L280 TraceCheckUtils]: 1: Hoare triple {5453#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {5453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,388 INFO L280 TraceCheckUtils]: 2: Hoare triple {5453#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {5453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,389 INFO L280 TraceCheckUtils]: 3: Hoare triple {5453#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {5453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,389 INFO L280 TraceCheckUtils]: 4: Hoare triple {5453#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:37:59,390 INFO L280 TraceCheckUtils]: 5: Hoare triple {5453#(= 0 ~__unbuffered_cnt~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:37:59,391 INFO L280 TraceCheckUtils]: 6: Hoare triple {5454#(<= ~__unbuffered_cnt~0 1)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:37:59,392 INFO L280 TraceCheckUtils]: 7: Hoare triple {5454#(<= ~__unbuffered_cnt~0 1)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {5454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:37:59,393 INFO L280 TraceCheckUtils]: 8: Hoare triple {5454#(<= ~__unbuffered_cnt~0 1)} [164] L769-->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] {5454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:37:59,394 INFO L280 TraceCheckUtils]: 9: Hoare triple {5454#(<= ~__unbuffered_cnt~0 1)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5455#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:37:59,395 INFO L280 TraceCheckUtils]: 10: Hoare triple {5455#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5455#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:37:59,396 INFO L280 TraceCheckUtils]: 11: Hoare triple {5455#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5452#false} is VALID [2020-07-28 21:37:59,397 INFO L280 TraceCheckUtils]: 12: Hoare triple {5452#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5452#false} is VALID [2020-07-28 21:37:59,397 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 21:37:59,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083374451] [2020-07-28 21:37:59,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:59,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:37:59,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919135951] [2020-07-28 21:37:59,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:37:59,399 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:59,399 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:37:59,416 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 21:37:59,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:37:59,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:59,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:37:59,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:37:59,418 INFO L87 Difference]: Start difference. First operand 128 states and 293 transitions. Second operand 5 states. [2020-07-28 21:37:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,574 INFO L93 Difference]: Finished difference Result 116 states and 240 transitions. [2020-07-28 21:37:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:37:59,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:37:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:37:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:37:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:37:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:37:59,577 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2020-07-28 21:37:59,669 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:59,671 INFO L225 Difference]: With dead ends: 116 [2020-07-28 21:37:59,671 INFO L226 Difference]: Without dead ends: 92 [2020-07-28 21:37:59,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 21:37:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-28 21:37:59,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-07-28 21:37:59,690 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:59,690 INFO L82 GeneralOperation]: Start isEquivalent. First operand 92 states. Second operand 92 states. [2020-07-28 21:37:59,690 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 92 states. [2020-07-28 21:37:59,690 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 92 states. [2020-07-28 21:37:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,692 INFO L93 Difference]: Finished difference Result 92 states and 186 transitions. [2020-07-28 21:37:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:37:59,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,693 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 92 states. [2020-07-28 21:37:59,693 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 92 states. [2020-07-28 21:37:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,695 INFO L93 Difference]: Finished difference Result 92 states and 186 transitions. [2020-07-28 21:37:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:37:59,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,696 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:59,696 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-07-28 21:37:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 186 transitions. [2020-07-28 21:37:59,698 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 186 transitions. Word has length 13 [2020-07-28 21:37:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:59,699 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 186 transitions. [2020-07-28 21:37:59,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:37:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2020-07-28 21:37:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:37:59,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:59,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:59,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:37:59,700 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:59,700 INFO L82 PathProgramCache]: Analyzing trace with hash -228576461, now seen corresponding path program 1 times [2020-07-28 21:37:59,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:59,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484568523] [2020-07-28 21:37:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:37:59,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {5944#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {5944#true} is VALID [2020-07-28 21:37:59,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {5944#true} [160] L765-->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] {5944#true} is VALID [2020-07-28 21:37:59,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {5944#true} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {5944#true} is VALID [2020-07-28 21:37:59,749 INFO L280 TraceCheckUtils]: 3: Hoare triple {5944#true} [162] L767-->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] {5944#true} is VALID [2020-07-28 21:37:59,749 INFO L280 TraceCheckUtils]: 4: Hoare triple {5944#true} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5944#true} is VALID [2020-07-28 21:37:59,749 INFO L280 TraceCheckUtils]: 5: Hoare triple {5944#true} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5944#true} is VALID [2020-07-28 21:37:59,750 INFO L280 TraceCheckUtils]: 6: Hoare triple {5944#true} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {5944#true} is VALID [2020-07-28 21:37:59,750 INFO L280 TraceCheckUtils]: 7: Hoare triple {5944#true} [164] L769-->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] {5944#true} is VALID [2020-07-28 21:37:59,750 INFO L280 TraceCheckUtils]: 8: Hoare triple {5944#true} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5944#true} is VALID [2020-07-28 21:37:59,751 INFO L280 TraceCheckUtils]: 9: Hoare triple {5944#true} [155] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5946#(= 1 ~y~0)} is VALID [2020-07-28 21:37:59,752 INFO L280 TraceCheckUtils]: 10: Hoare triple {5946#(= 1 ~y~0)} [192] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= (+ v_~__unbuffered_cnt~0_40 1) v_~__unbuffered_cnt~0_39) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_40} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_39, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5946#(= 1 ~y~0)} is VALID [2020-07-28 21:37:59,752 INFO L280 TraceCheckUtils]: 11: Hoare triple {5946#(= 1 ~y~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5946#(= 1 ~y~0)} is VALID [2020-07-28 21:37:59,754 INFO L280 TraceCheckUtils]: 12: Hoare triple {5946#(= 1 ~y~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5947#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:37:59,755 INFO L280 TraceCheckUtils]: 13: Hoare triple {5947#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5945#false} is VALID [2020-07-28 21:37:59,755 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 21:37:59,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484568523] [2020-07-28 21:37:59,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:37:59,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:37:59,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510742382] [2020-07-28 21:37:59,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-07-28 21:37:59,756 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:37:59,757 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:37:59,772 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 21:37:59,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:37:59,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:37:59,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:37:59,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:37:59,773 INFO L87 Difference]: Start difference. First operand 92 states and 186 transitions. Second operand 4 states. [2020-07-28 21:37:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,863 INFO L93 Difference]: Finished difference Result 120 states and 228 transitions. [2020-07-28 21:37:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:37:59,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-07-28 21:37:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:37:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-07-28 21:37:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:37:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-07-28 21:37:59,865 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 34 transitions. [2020-07-28 21:37:59,909 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:37:59,911 INFO L225 Difference]: With dead ends: 120 [2020-07-28 21:37:59,911 INFO L226 Difference]: Without dead ends: 94 [2020-07-28 21:37:59,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:37:59,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-07-28 21:37:59,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,914 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,915 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,916 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,917 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,918 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,919 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,920 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,921 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,922 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,923 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,924 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,925 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,926 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,927 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,928 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,929 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,930 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,931 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,932 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,933 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,934 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,935 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,936 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,937 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,938 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,939 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:37:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-07-28 21:37:59,940 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:37:59,940 INFO L82 GeneralOperation]: Start isEquivalent. First operand 94 states. Second operand 90 states. [2020-07-28 21:37:59,940 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 90 states. [2020-07-28 21:37:59,940 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 90 states. [2020-07-28 21:37:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,943 INFO L93 Difference]: Finished difference Result 94 states and 179 transitions. [2020-07-28 21:37:59,943 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2020-07-28 21:37:59,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,943 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,944 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 94 states. [2020-07-28 21:37:59,944 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 94 states. [2020-07-28 21:37:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:37:59,946 INFO L93 Difference]: Finished difference Result 94 states and 179 transitions. [2020-07-28 21:37:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 179 transitions. [2020-07-28 21:37:59,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:37:59,947 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:37:59,947 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:37:59,947 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:37:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-28 21:37:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 175 transitions. [2020-07-28 21:37:59,949 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 175 transitions. Word has length 14 [2020-07-28 21:37:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:37:59,950 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 175 transitions. [2020-07-28 21:37:59,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:37:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 175 transitions. [2020-07-28 21:37:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:37:59,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:37:59,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:37:59,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:37:59,951 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:37:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:37:59,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1357686433, now seen corresponding path program 1 times [2020-07-28 21:37:59,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:37:59,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462233309] [2020-07-28 21:37:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:37:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:00,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {6441#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {6441#true} is VALID [2020-07-28 21:38:00,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {6441#true} [160] L765-->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] {6441#true} is VALID [2020-07-28 21:38:00,010 INFO L280 TraceCheckUtils]: 2: Hoare triple {6441#true} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {6441#true} is VALID [2020-07-28 21:38:00,010 INFO L280 TraceCheckUtils]: 3: Hoare triple {6441#true} [162] L767-->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] {6441#true} is VALID [2020-07-28 21:38:00,011 INFO L280 TraceCheckUtils]: 4: Hoare triple {6441#true} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6443#(= 1 ~x~0)} is VALID [2020-07-28 21:38:00,012 INFO L280 TraceCheckUtils]: 5: Hoare triple {6443#(= 1 ~x~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6443#(= 1 ~x~0)} is VALID [2020-07-28 21:38:00,013 INFO L280 TraceCheckUtils]: 6: Hoare triple {6443#(= 1 ~x~0)} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6443#(= 1 ~x~0)} is VALID [2020-07-28 21:38:00,013 INFO L280 TraceCheckUtils]: 7: Hoare triple {6443#(= 1 ~x~0)} [144] L713-->L718: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,014 INFO L280 TraceCheckUtils]: 8: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,015 INFO L280 TraceCheckUtils]: 9: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [164] L769-->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] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,015 INFO L280 TraceCheckUtils]: 10: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,016 INFO L280 TraceCheckUtils]: 11: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [204] L718-->P0EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,017 INFO L280 TraceCheckUtils]: 12: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6444#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:38:00,018 INFO L280 TraceCheckUtils]: 13: Hoare triple {6444#(= 1 ~__unbuffered_p0_EAX~0)} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6445#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:38:00,019 INFO L280 TraceCheckUtils]: 14: Hoare triple {6445#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6442#false} is VALID [2020-07-28 21:38:00,020 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 21:38:00,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462233309] [2020-07-28 21:38:00,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:00,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:38:00,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107382802] [2020-07-28 21:38:00,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:38:00,021 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:00,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:38:00,040 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:00,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:38:00,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:00,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:38:00,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:38:00,041 INFO L87 Difference]: Start difference. First operand 90 states and 175 transitions. Second operand 5 states. [2020-07-28 21:38:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,158 INFO L93 Difference]: Finished difference Result 113 states and 209 transitions. [2020-07-28 21:38:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:38:00,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:38:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:38:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:38:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2020-07-28 21:38:00,160 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 36 transitions. [2020-07-28 21:38:00,203 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 21:38:00,204 INFO L225 Difference]: With dead ends: 113 [2020-07-28 21:38:00,205 INFO L226 Difference]: Without dead ends: 70 [2020-07-28 21:38:00,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:38:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-28 21:38:00,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:38:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-07-28 21:38:00,224 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:00,224 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand 68 states. [2020-07-28 21:38:00,225 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 68 states. [2020-07-28 21:38:00,225 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 68 states. [2020-07-28 21:38:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,227 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2020-07-28 21:38:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 116 transitions. [2020-07-28 21:38:00,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:00,227 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:00,227 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 70 states. [2020-07-28 21:38:00,228 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 70 states. [2020-07-28 21:38:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,229 INFO L93 Difference]: Finished difference Result 70 states and 116 transitions. [2020-07-28 21:38:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 116 transitions. [2020-07-28 21:38:00,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:00,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:00,230 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:00,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-28 21:38:00,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 115 transitions. [2020-07-28 21:38:00,232 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 115 transitions. Word has length 15 [2020-07-28 21:38:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:00,233 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 115 transitions. [2020-07-28 21:38:00,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:38:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 115 transitions. [2020-07-28 21:38:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:38:00,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:38:00,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:38:00,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:38:00,234 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:38:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:38:00,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1504039886, now seen corresponding path program 1 times [2020-07-28 21:38:00,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:38:00,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472461601] [2020-07-28 21:38:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:38:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:38:00,309 INFO L280 TraceCheckUtils]: 0: Hoare triple {6841#true} [217] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_55| 0 0))) (and (< |v_#StackHeapBarrier_14| |v_ULTIMATE.start_main_~#t2263~0.base_17|) (= 0 |v_#NULL.base_5|) (= |v_#valid_53| (store .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17| 1)) (= 0 v_~__unbuffered_p2_EAX~0_38) (= 0 v_~main$tmp_guard0~0_36) (= v_~__unbuffered_cnt~0_119 0) (= 0 v_~x~0_34) (= 0 |v_ULTIMATE.start_main_~#t2263~0.offset_13|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_33) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2263~0.base_17| 4)) (< 0 |v_#StackHeapBarrier_14|) (= 0 v_~__unbuffered_p0_EAX~0_39) (= (select .cse0 |v_ULTIMATE.start_main_~#t2263~0.base_17|) 0) (= 0 v_~y~0_45) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2263~0.base_17|) |v_ULTIMATE.start_main_~#t2263~0.offset_13| 0)) |v_#memory_int_19|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_14|, #valid=|v_#valid_55|, #memory_int=|v_#memory_int_20|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_16|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_13|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_14|, #NULL.offset=|v_#NULL.offset_5|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_16|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_14|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_39, ULTIMATE.start_main_~#t2263~0.offset=|v_ULTIMATE.start_main_~#t2263~0.offset_13|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_19|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_38, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_119, ~y~0=v_~y~0_45, ULTIMATE.start_main_~#t2263~0.base=|v_ULTIMATE.start_main_~#t2263~0.base_17|, ~x~0=v_~x~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2265~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2264~0.offset, #NULL.offset, ULTIMATE.start_main_~#t2265~0.base, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2263~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2263~0.base, ~x~0] {6843#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:00,310 INFO L280 TraceCheckUtils]: 1: Hoare triple {6843#(= 0 ~__unbuffered_cnt~0)} [160] L765-->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] {6843#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:00,311 INFO L280 TraceCheckUtils]: 2: Hoare triple {6843#(= 0 ~__unbuffered_cnt~0)} [200] L765-1-->L767: Formula: (and (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2264~0.base_12|) |v_ULTIMATE.start_main_~#t2264~0.offset_11| 1)) |v_#memory_int_13|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2264~0.base_12| 1)) (= 0 |v_ULTIMATE.start_main_~#t2264~0.offset_11|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2264~0.base_12| 4)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2264~0.base_12|) (not (= 0 |v_ULTIMATE.start_main_~#t2264~0.base_12|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2264~0.base=|v_ULTIMATE.start_main_~#t2264~0.base_12|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t2264~0.offset=|v_ULTIMATE.start_main_~#t2264~0.offset_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2264~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t2264~0.offset, #length] {6843#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:00,311 INFO L280 TraceCheckUtils]: 3: Hoare triple {6843#(= 0 ~__unbuffered_cnt~0)} [162] L767-->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] {6843#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:00,313 INFO L280 TraceCheckUtils]: 4: Hoare triple {6843#(= 0 ~__unbuffered_cnt~0)} [183] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {6843#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:38:00,314 INFO L280 TraceCheckUtils]: 5: Hoare triple {6843#(= 0 ~__unbuffered_cnt~0)} [193] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_11|) (= |v_P1Thread1of1ForFork1_#res.offset_11| 0) (= (+ v_~__unbuffered_cnt~0_58 1) v_~__unbuffered_cnt~0_57)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_58} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_57, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_11|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {6844#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:00,314 INFO L280 TraceCheckUtils]: 6: Hoare triple {6844#(<= ~__unbuffered_cnt~0 1)} [203] L767-1-->L769: Formula: (and (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2265~0.base_12|) |v_ULTIMATE.start_main_~#t2265~0.offset_10| 2)) |v_#memory_int_15|) (= (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12|) 0) (not (= 0 |v_ULTIMATE.start_main_~#t2265~0.base_12|)) (= |v_#valid_37| (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2265~0.base_12| 1)) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2265~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2265~0.offset_10|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2265~0.base_12|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_16|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2265~0.offset=|v_ULTIMATE.start_main_~#t2265~0.offset_10|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_15|, ULTIMATE.start_main_~#t2265~0.base=|v_ULTIMATE.start_main_~#t2265~0.base_12|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2265~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2265~0.base, #length] {6844#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:00,315 INFO L280 TraceCheckUtils]: 7: Hoare triple {6844#(<= ~__unbuffered_cnt~0 1)} [164] L769-->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] {6844#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:00,316 INFO L280 TraceCheckUtils]: 8: Hoare triple {6844#(<= ~__unbuffered_cnt~0 1)} [170] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_5 v_~x~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|, ~x~0=v_~x~0_8} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_5, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_8} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6844#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:00,316 INFO L280 TraceCheckUtils]: 9: Hoare triple {6844#(<= ~__unbuffered_cnt~0 1)} [155] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6844#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:38:00,318 INFO L280 TraceCheckUtils]: 10: Hoare triple {6844#(<= ~__unbuffered_cnt~0 1)} [192] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= (+ v_~__unbuffered_cnt~0_40 1) v_~__unbuffered_cnt~0_39) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_40} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_39, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {6845#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:38:00,319 INFO L280 TraceCheckUtils]: 11: Hoare triple {6845#(<= ~__unbuffered_cnt~0 2)} [201] L769-1-->L773: Formula: (and (= (mod v_~main$tmp_guard0~0_21 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_63))) (or (and (= 1 v_~main$tmp_guard0~0_21) .cse0) (and (= 0 v_~main$tmp_guard0~0_21) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_21} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6846#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:00,320 INFO L280 TraceCheckUtils]: 12: Hoare triple {6846#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [185] P0ENTRY-->L713: Formula: (and (= 2 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {6846#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:38:00,322 INFO L280 TraceCheckUtils]: 13: Hoare triple {6846#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [211] L773-->L779: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_6| (mod v_~main$tmp_guard1~0_28 256)) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_15)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_15 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|) (let ((.cse2 (= 2 v_~y~0_33)) (.cse0 (= 1 v_~__unbuffered_p2_EAX~0_32)) (.cse1 (= 0 v_~__unbuffered_p0_EAX~0_33))) (or (and (or (not .cse0) (not .cse1) (not .cse2)) (= 1 v_~main$tmp_guard1~0_28)) (and .cse2 .cse0 .cse1 (= 0 v_~main$tmp_guard1~0_28))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_33, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_15, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ~y~0=v_~y~0_33, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_6|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {6842#false} is VALID [2020-07-28 21:38:00,322 INFO L280 TraceCheckUtils]: 14: Hoare triple {6842#false} [199] L779-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_11) (= v_ULTIMATE.start___VERIFIER_assert_~expression_11 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_11, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_4|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {6842#false} is VALID [2020-07-28 21:38:00,323 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 21:38:00,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472461601] [2020-07-28 21:38:00,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:38:00,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 21:38:00,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777996924] [2020-07-28 21:38:00,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:38:00,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:38:00,329 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:38:00,350 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:38:00,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:38:00,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:38:00,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:38:00,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:38:00,352 INFO L87 Difference]: Start difference. First operand 68 states and 115 transitions. Second operand 6 states. [2020-07-28 21:38:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,444 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-07-28 21:38:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:38:00,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:38:00,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:38:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:38:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-07-28 21:38:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:38:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-07-28 21:38:00,446 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 33 transitions. [2020-07-28 21:38:00,489 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 21:38:00,490 INFO L225 Difference]: With dead ends: 58 [2020-07-28 21:38:00,490 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:38:00,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 21:38:00,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:38:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:38:00,491 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:38:00,491 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:00,491 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:00,493 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,497 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:38:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:00,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:00,497 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:00,497 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:00,497 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:38:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:38:00,498 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:38:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:00,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:00,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:38:00,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:38:00,498 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:38:00,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:38:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:38:00,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 21:38:00,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:38:00,499 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:38:00,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:38:00,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:38:00,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:38:00,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-28 21:38:00,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:38:00 BasicIcfg [2020-07-28 21:38:00,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:38:00,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:38:00,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:38:00,506 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:38:00,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:37:54" (3/4) ... [2020-07-28 21:38:00,510 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:38:00,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:38:00,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:38:00,516 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:38:00,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:38:00,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:38:00,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:38:00,567 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:38:00,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:38:00,569 INFO L168 Benchmark]: Toolchain (without parser) took 7284.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -137.3 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,570 INFO L168 Benchmark]: CDTParser took 0.29 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 21:38:00,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:38:00,572 INFO L168 Benchmark]: Boogie Preprocessor took 30.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,572 INFO L168 Benchmark]: RCFGBuilder took 545.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,573 INFO L168 Benchmark]: TraceAbstraction took 5912.33 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -79.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,573 INFO L168 Benchmark]: Witness Printer took 61.39 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:38:00,577 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 0.29 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 668.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 545.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5912.33 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -79.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. * Witness Printer took 61.39 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 76 ProgramPointsBefore, 31 ProgramPointsAfterwards, 68 TransitionsBefore, 22 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 609 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 2244 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 189 SDtfs, 173 SDslu, 277 SDs, 0 SdLazy, 115 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3462 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...