./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 772f020ff3caa66c893534aa92580d543b61c1d1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:40:54,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:40:54,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:40:54,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:40:54,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:40:54,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:40:54,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:40:54,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:40:54,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:40:54,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:40:54,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:40:54,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:40:54,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:40:54,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:40:54,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:40:54,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:40:54,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:40:54,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:40:54,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:40:54,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:40:54,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:40:54,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:40:54,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:40:54,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:40:54,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:40:54,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:40:54,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:40:54,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:40:54,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:40:54,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:40:54,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:40:54,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:40:54,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:40:54,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:40:54,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:40:54,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:40:54,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:40:54,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:40:54,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:40:54,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:40:54,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:40:54,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:40:54,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:40:54,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:40:54,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:40:54,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:40:54,221 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:40:54,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:40:54,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:40:54,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:40:54,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:40:54,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:40:54,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:40:54,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:40:54,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:40:54,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:40:54,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:40:54,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:40:54,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:40:54,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:40:54,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:40:54,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:40:54,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:40:54,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:40:54,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:40:54,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:40:54,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:40:54,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:40:54,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:40:54,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:40:54,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:40:54,228 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 -> 772f020ff3caa66c893534aa92580d543b61c1d1 [2020-07-28 21:40:54,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:40:54,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:40:54,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:40:54,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:40:54,540 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:40:54,541 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i [2020-07-28 21:40:54,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849fd6fc3/f13ed11cb0e74569a7c77e5df288a55a/FLAGcf278ba66 [2020-07-28 21:40:55,160 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:40:55,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.opt.i [2020-07-28 21:40:55,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849fd6fc3/f13ed11cb0e74569a7c77e5df288a55a/FLAGcf278ba66 [2020-07-28 21:40:55,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/849fd6fc3/f13ed11cb0e74569a7c77e5df288a55a [2020-07-28 21:40:55,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:40:55,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:40:55,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:40:55,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:40:55,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:40:55,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:40:55" (1/1) ... [2020-07-28 21:40:55,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1569f8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:55, skipping insertion in model container [2020-07-28 21:40:55,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:40:55" (1/1) ... [2020-07-28 21:40:55,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:40:55,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:40:55,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:40:55,960 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:40:56,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:40:56,112 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:40:56,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56 WrapperNode [2020-07-28 21:40:56,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:40:56,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:40:56,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:40:56,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:40:56,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:40:56,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:40:56,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:40:56,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:40:56,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (1/1) ... [2020-07-28 21:40:56,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:40:56,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:40:56,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:40:56,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:40:56,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (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 21:40:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:40:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:40:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:40:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:40:56,282 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:40:56,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:40:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:40:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:40:56,283 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:40:56,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:40:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:40:56,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:40:56,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:40:56,286 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 21:40:56,774 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:40:56,775 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:40:56,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:40:56 BoogieIcfgContainer [2020-07-28 21:40:56,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:40:56,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:40:56,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:40:56,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:40:56,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:40:55" (1/3) ... [2020-07-28 21:40:56,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68374ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:40:56, skipping insertion in model container [2020-07-28 21:40:56,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:40:56" (2/3) ... [2020-07-28 21:40:56,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68374ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:40:56, skipping insertion in model container [2020-07-28 21:40:56,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:40:56" (3/3) ... [2020-07-28 21:40:56,790 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-07-28 21:40:56,801 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:40:56,801 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:40:56,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:40:56,810 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:40:56,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,848 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,849 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,851 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,851 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,851 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:40:56,889 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:40:56,908 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:40:56,908 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:40:56,908 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:40:56,909 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:40:56,909 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:40:56,909 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:40:56,909 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:40:56,909 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:40:56,925 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-07-28 21:40:56,927 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-07-28 21:40:56,971 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-07-28 21:40:56,972 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:40:56,977 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:40:56,980 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-07-28 21:40:57,002 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-07-28 21:40:57,002 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:40:57,003 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:40:57,006 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:40:57,007 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:40:59,411 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2585 [2020-07-28 21:40:59,411 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-07-28 21:40:59,415 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-07-28 21:40:59,440 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:40:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:40:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:40:59,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:40:59,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:40:59,452 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:40:59,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:40:59,458 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-07-28 21:40:59,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:40:59,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364838383] [2020-07-28 21:40:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:40:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:40:59,706 INFO L280 TraceCheckUtils]: 0: Hoare triple {678#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,707 INFO L280 TraceCheckUtils]: 1: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [167] L772-->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] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,708 INFO L280 TraceCheckUtils]: 2: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,709 INFO L280 TraceCheckUtils]: 3: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [169] L774-->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] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,710 INFO L280 TraceCheckUtils]: 4: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,711 INFO L280 TraceCheckUtils]: 5: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [171] L776-->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] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,712 INFO L280 TraceCheckUtils]: 6: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {680#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:40:59,714 INFO L280 TraceCheckUtils]: 7: Hoare triple {680#(= 0 ~__unbuffered_p2_EAX~0)} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {679#false} is VALID [2020-07-28 21:40:59,716 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 21:40:59,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364838383] [2020-07-28 21:40:59,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:40:59,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:40:59,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055639903] [2020-07-28 21:40:59,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:40:59,727 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:40:59,732 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:40:59,753 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 21:40:59,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:40:59,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:40:59,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:40:59,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:40:59,767 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:40:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:40:59,901 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:40:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:40:59,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:40:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:40:59,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:40:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:40:59,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:40:59,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:40:59,905 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:40:59,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:40:59,989 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:40:59,989 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:40:59,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:41:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:41:00,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:41:00,148 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:00,149 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:00,149 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:00,150 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,183 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:41:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:00,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,193 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,193 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:00,193 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:41:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,218 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:41:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:00,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,222 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,223 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:00,223 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:41:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:41:00,244 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:41:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:00,245 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:41:00,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:41:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:41:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:41:00,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:00,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:00,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:41:00,250 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:00,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-07-28 21:41:00,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:00,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825657211] [2020-07-28 21:41:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:00,401 INFO L280 TraceCheckUtils]: 0: Hoare triple {1837#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,402 INFO L280 TraceCheckUtils]: 1: Hoare triple {1839#(= 0 ~y~0)} [167] L772-->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] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,403 INFO L280 TraceCheckUtils]: 2: Hoare triple {1839#(= 0 ~y~0)} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,404 INFO L280 TraceCheckUtils]: 3: Hoare triple {1839#(= 0 ~y~0)} [169] L774-->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] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,404 INFO L280 TraceCheckUtils]: 4: Hoare triple {1839#(= 0 ~y~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,405 INFO L280 TraceCheckUtils]: 5: Hoare triple {1839#(= 0 ~y~0)} [171] L776-->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] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,406 INFO L280 TraceCheckUtils]: 6: Hoare triple {1839#(= 0 ~y~0)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1839#(= 0 ~y~0)} is VALID [2020-07-28 21:41:00,407 INFO L280 TraceCheckUtils]: 7: Hoare triple {1839#(= 0 ~y~0)} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1840#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:41:00,408 INFO L280 TraceCheckUtils]: 8: Hoare triple {1840#(= 0 ~__unbuffered_p2_EAX~0)} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1838#false} is VALID [2020-07-28 21:41:00,409 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 21:41:00,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825657211] [2020-07-28 21:41:00,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:00,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:41:00,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523569501] [2020-07-28 21:41:00,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:41:00,411 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:00,412 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:00,431 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 21:41:00,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:00,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:00,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:00,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:00,432 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:41:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,516 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-07-28 21:41:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:00,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:41:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:00,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:41:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:41:00,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 35 transitions. [2020-07-28 21:41:00,564 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:00,568 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:41:00,568 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:41:00,569 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 21:41:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:41:00,574 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,575 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,576 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,577 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,578 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,579 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,580 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,581 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,582 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,583 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,584 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,585 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,586 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,587 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,588 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,589 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,590 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,591 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,592 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,593 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,594 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,595 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,596 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,597 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,598 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,599 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,600 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,601 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:41:00,606 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:00,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:41:00,606 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:41:00,606 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:41:00,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,614 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:41:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:41:00,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,615 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,615 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:41:00,615 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:41:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,623 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:41:00,624 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:41:00,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,624 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,624 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:00,624 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:41:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-07-28 21:41:00,633 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-07-28 21:41:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:00,633 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-07-28 21:41:00,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:41:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:41:00,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:00,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:00,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:41:00,634 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:00,635 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-07-28 21:41:00,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:00,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705346974] [2020-07-28 21:41:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:00,727 INFO L280 TraceCheckUtils]: 0: Hoare triple {2671#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,727 INFO L280 TraceCheckUtils]: 1: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [167] L772-->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] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,728 INFO L280 TraceCheckUtils]: 2: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,729 INFO L280 TraceCheckUtils]: 3: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [169] L774-->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] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,731 INFO L280 TraceCheckUtils]: 4: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [196] P1ENTRY-->L734: 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] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,731 INFO L280 TraceCheckUtils]: 5: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,732 INFO L280 TraceCheckUtils]: 6: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [171] L776-->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] {2673#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:00,733 INFO L280 TraceCheckUtils]: 7: Hoare triple {2673#(= 0 ~__unbuffered_cnt~0)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:00,734 INFO L280 TraceCheckUtils]: 8: Hoare triple {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [156] L734-->L737: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:00,735 INFO L280 TraceCheckUtils]: 9: Hoare triple {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= 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|, ~y~0=v_~y~0_9} 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_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:00,737 INFO L280 TraceCheckUtils]: 10: Hoare triple {2674#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2672#false} is VALID [2020-07-28 21:41:00,738 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 21:41:00,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705346974] [2020-07-28 21:41:00,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:00,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:41:00,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184155448] [2020-07-28 21:41:00,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:41:00,740 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:00,740 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:00,758 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 21:41:00,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:00,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:00,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:00,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:00,760 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-07-28 21:41:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,871 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-07-28 21:41:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:41:00,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:41:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:00,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:41:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:41:00,874 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:41:00,935 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:00,938 INFO L225 Difference]: With dead ends: 165 [2020-07-28 21:41:00,938 INFO L226 Difference]: Without dead ends: 125 [2020-07-28 21:41:00,939 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 21:41:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-07-28 21:41:00,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,943 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,944 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,945 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,946 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,950 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,950 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,950 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,950 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,950 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,951 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,952 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,953 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,954 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,955 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,956 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,957 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-07-28 21:41:00,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:00,973 INFO L82 GeneralOperation]: Start isEquivalent. First operand 125 states. Second operand 125 states. [2020-07-28 21:41:00,973 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 125 states. [2020-07-28 21:41:00,973 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 125 states. [2020-07-28 21:41:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,979 INFO L93 Difference]: Finished difference Result 125 states and 284 transitions. [2020-07-28 21:41:00,979 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-07-28 21:41:00,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,980 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,980 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 125 states. [2020-07-28 21:41:00,980 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 125 states. [2020-07-28 21:41:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:00,988 INFO L93 Difference]: Finished difference Result 125 states and 284 transitions. [2020-07-28 21:41:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-07-28 21:41:00,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:00,989 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:00,989 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:00,989 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-28 21:41:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-07-28 21:41:00,995 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-07-28 21:41:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:00,995 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-07-28 21:41:00,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-07-28 21:41:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:41:00,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:00,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:00,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:41:00,997 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:00,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1227187402, now seen corresponding path program 1 times [2020-07-28 21:41:00,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:00,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669833882] [2020-07-28 21:41:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:01,129 INFO L280 TraceCheckUtils]: 0: Hoare triple {3344#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,129 INFO L280 TraceCheckUtils]: 1: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [167] L772-->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] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,130 INFO L280 TraceCheckUtils]: 2: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,131 INFO L280 TraceCheckUtils]: 3: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [169] L774-->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] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,131 INFO L280 TraceCheckUtils]: 4: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [196] P1ENTRY-->L734: 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] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,133 INFO L280 TraceCheckUtils]: 5: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,134 INFO L280 TraceCheckUtils]: 6: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [171] L776-->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] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,134 INFO L280 TraceCheckUtils]: 7: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [156] L734-->L737: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {3346#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,135 INFO L280 TraceCheckUtils]: 8: Hoare triple {3346#(= 0 ~__unbuffered_cnt~0)} [214] L737-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3347#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:01,136 INFO L280 TraceCheckUtils]: 9: Hoare triple {3347#(<= ~__unbuffered_cnt~0 1)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3348#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:01,137 INFO L280 TraceCheckUtils]: 10: Hoare triple {3348#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3348#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:01,139 INFO L280 TraceCheckUtils]: 11: Hoare triple {3348#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3345#false} is VALID [2020-07-28 21:41:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:41:01,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669833882] [2020-07-28 21:41:01,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:01,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:01,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003341292] [2020-07-28 21:41:01,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:41:01,143 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:01,143 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:41:01,158 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 21:41:01,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:41:01,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:01,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:41:01,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:41:01,160 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-07-28 21:41:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,338 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-07-28 21:41:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:41:01,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:41:01,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:41:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:41:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:41:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:41:01,341 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 58 transitions. [2020-07-28 21:41:01,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:01,422 INFO L225 Difference]: With dead ends: 122 [2020-07-28 21:41:01,422 INFO L226 Difference]: Without dead ends: 97 [2020-07-28 21:41:01,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:41:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-07-28 21:41:01,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-07-28 21:41:01,461 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:01,461 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 97 states. [2020-07-28 21:41:01,461 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:41:01,461 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:41:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,465 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:41:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:41:01,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:01,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:01,466 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:41:01,467 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:41:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,471 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:41:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:41:01,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:01,472 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:01,472 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:01,472 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-28 21:41:01,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-07-28 21:41:01,476 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-07-28 21:41:01,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:01,477 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-07-28 21:41:01,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:41:01,477 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:41:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:41:01,477 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:01,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:01,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:41:01,478 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:01,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-07-28 21:41:01,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:01,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638597067] [2020-07-28 21:41:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:01,556 INFO L280 TraceCheckUtils]: 0: Hoare triple {3863#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,557 INFO L280 TraceCheckUtils]: 1: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [167] L772-->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] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,558 INFO L280 TraceCheckUtils]: 2: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,559 INFO L280 TraceCheckUtils]: 3: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [169] L774-->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] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,560 INFO L280 TraceCheckUtils]: 4: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [196] P1ENTRY-->L734: 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] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,560 INFO L280 TraceCheckUtils]: 5: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,564 INFO L280 TraceCheckUtils]: 6: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [171] L776-->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] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,568 INFO L280 TraceCheckUtils]: 7: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [156] L734-->L737: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {3865#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:41:01,569 INFO L280 TraceCheckUtils]: 8: Hoare triple {3865#(= 0 ~__unbuffered_cnt~0)} [214] L737-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3866#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:01,570 INFO L280 TraceCheckUtils]: 9: Hoare triple {3866#(<= ~__unbuffered_cnt~0 1)} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= 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|, ~y~0=v_~y~0_9} 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_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3866#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:01,571 INFO L280 TraceCheckUtils]: 10: Hoare triple {3866#(<= ~__unbuffered_cnt~0 1)} [162] L749-->L752: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~z~0_2) InVars {~z~0=v_~z~0_2} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1, ~z~0=v_~z~0_2} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {3866#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:41:01,572 INFO L280 TraceCheckUtils]: 11: Hoare triple {3866#(<= ~__unbuffered_cnt~0 1)} [210] L752-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_73 (+ v_~__unbuffered_cnt~0_74 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3867#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:41:01,573 INFO L280 TraceCheckUtils]: 12: Hoare triple {3867#(<= ~__unbuffered_cnt~0 2)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3868#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:41:01,575 INFO L280 TraceCheckUtils]: 13: Hoare triple {3868#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3864#false} is VALID [2020-07-28 21:41:01,576 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 21:41:01,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638597067] [2020-07-28 21:41:01,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:01,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:41:01,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632227969] [2020-07-28 21:41:01,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:41:01,578 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:01,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:41:01,598 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 21:41:01,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:41:01,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:01,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:41:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:41:01,599 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-07-28 21:41:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,799 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-07-28 21:41:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:41:01,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:41:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:41:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:41:01,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:41:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:41:01,802 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 49 transitions. [2020-07-28 21:41:01,876 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 21:41:01,877 INFO L225 Difference]: With dead ends: 92 [2020-07-28 21:41:01,877 INFO L226 Difference]: Without dead ends: 84 [2020-07-28 21:41:01,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:41:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-28 21:41:01,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,893 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,894 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,902 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-07-28 21:41:01,903 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:01,903 INFO L82 GeneralOperation]: Start isEquivalent. First operand 84 states. Second operand 84 states. [2020-07-28 21:41:01,903 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 84 states. [2020-07-28 21:41:01,903 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 84 states. [2020-07-28 21:41:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,912 INFO L93 Difference]: Finished difference Result 84 states and 176 transitions. [2020-07-28 21:41:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-07-28 21:41:01,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:01,913 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:01,913 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 84 states. [2020-07-28 21:41:01,913 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 84 states. [2020-07-28 21:41:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:01,929 INFO L93 Difference]: Finished difference Result 84 states and 176 transitions. [2020-07-28 21:41:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-07-28 21:41:01,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:01,930 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:01,930 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:01,930 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-28 21:41:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-07-28 21:41:01,940 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-07-28 21:41:01,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:01,940 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-07-28 21:41:01,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:41:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-07-28 21:41:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:01,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:01,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:01,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:41:01,942 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:01,942 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-07-28 21:41:01,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:01,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651358139] [2020-07-28 21:41:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:02,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {4301#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {4301#true} is VALID [2020-07-28 21:41:02,009 INFO L280 TraceCheckUtils]: 1: Hoare triple {4301#true} [167] L772-->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] {4301#true} is VALID [2020-07-28 21:41:02,009 INFO L280 TraceCheckUtils]: 2: Hoare triple {4301#true} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4301#true} is VALID [2020-07-28 21:41:02,010 INFO L280 TraceCheckUtils]: 3: Hoare triple {4301#true} [169] L774-->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] {4301#true} is VALID [2020-07-28 21:41:02,010 INFO L280 TraceCheckUtils]: 4: Hoare triple {4301#true} [196] P1ENTRY-->L734: 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] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,011 INFO L280 TraceCheckUtils]: 5: Hoare triple {4303#(= 1 ~x~0)} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,012 INFO L280 TraceCheckUtils]: 6: Hoare triple {4303#(= 1 ~x~0)} [171] L776-->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] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,013 INFO L280 TraceCheckUtils]: 7: Hoare triple {4303#(= 1 ~x~0)} [156] L734-->L737: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,014 INFO L280 TraceCheckUtils]: 8: Hoare triple {4303#(= 1 ~x~0)} [214] L737-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,015 INFO L280 TraceCheckUtils]: 9: Hoare triple {4303#(= 1 ~x~0)} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= 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|, ~y~0=v_~y~0_9} 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_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,016 INFO L280 TraceCheckUtils]: 10: Hoare triple {4303#(= 1 ~x~0)} [162] L749-->L752: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~z~0_2) InVars {~z~0=v_~z~0_2} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1, ~z~0=v_~z~0_2} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,017 INFO L280 TraceCheckUtils]: 11: Hoare triple {4303#(= 1 ~x~0)} [210] L752-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_73 (+ v_~__unbuffered_cnt~0_74 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,018 INFO L280 TraceCheckUtils]: 12: Hoare triple {4303#(= 1 ~x~0)} [191] P0ENTRY-->L717: Formula: (and (= 1 v_~z~0_10) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_10, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4303#(= 1 ~x~0)} is VALID [2020-07-28 21:41:02,019 INFO L280 TraceCheckUtils]: 13: Hoare triple {4303#(= 1 ~x~0)} [150] L717-->L722: 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] {4304#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:02,020 INFO L280 TraceCheckUtils]: 14: Hoare triple {4304#(= 1 ~__unbuffered_p0_EAX~0)} [202] L722-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= v_~__unbuffered_cnt~0_46 (+ v_~__unbuffered_cnt~0_47 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_47} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_46} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4304#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:02,021 INFO L280 TraceCheckUtils]: 15: Hoare triple {4304#(= 1 ~__unbuffered_p0_EAX~0)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4304#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:41:02,022 INFO L280 TraceCheckUtils]: 16: Hoare triple {4304#(= 1 ~__unbuffered_p0_EAX~0)} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4302#false} is VALID [2020-07-28 21:41:02,023 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 21:41:02,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651358139] [2020-07-28 21:41:02,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:02,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:02,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668321686] [2020-07-28 21:41:02,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:02,025 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:02,025 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:02,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:02,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:02,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:02,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:02,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:02,051 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-07-28 21:41:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,111 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-07-28 21:41:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:02,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:41:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:41:02,112 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 32 transitions. [2020-07-28 21:41:02,162 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:02,164 INFO L225 Difference]: With dead ends: 115 [2020-07-28 21:41:02,164 INFO L226 Difference]: Without dead ends: 54 [2020-07-28 21:41:02,164 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 21:41:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-07-28 21:41:02,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:41:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-07-28 21:41:02,179 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:02,179 INFO L82 GeneralOperation]: Start isEquivalent. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:02,179 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:02,179 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:02,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,180 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-07-28 21:41:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:02,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:02,181 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:02,181 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:02,181 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 54 states. [2020-07-28 21:41:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,182 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-07-28 21:41:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:02,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:02,183 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:02,183 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:02,183 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-28 21:41:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-07-28 21:41:02,184 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-07-28 21:41:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:02,184 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-07-28 21:41:02,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-07-28 21:41:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:41:02,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:41:02,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:41:02,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:41:02,187 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:41:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:41:02,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-07-28 21:41:02,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:41:02,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958935151] [2020-07-28 21:41:02,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:41:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:41:02,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {4640#true} [230] ULTIMATE.startENTRY-->L772: Formula: (let ((.cse0 (store |v_#valid_74| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p2_EBX~0_54 0) (= |v_#valid_73| (store .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34| 1)) (= 0 v_~main$tmp_guard0~0_36) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~y~0_22) (= 0 v_~z~0_34) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2366~0.base_34|) |v_ULTIMATE.start_main_~#t2366~0.offset_23| 0))) (< 0 |v_#StackHeapBarrier_17|) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2366~0.base_34| 4)) (= v_~__unbuffered_cnt~0_120 0) (= 0 v_~__unbuffered_p0_EAX~0_49) (= 0 |v_ULTIMATE.start_main_~#t2366~0.offset_23|) (< |v_#StackHeapBarrier_17| |v_ULTIMATE.start_main_~#t2366~0.base_34|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_49) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2366~0.base_34|)) (= 0 v_~x~0_24))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_17|, #valid=|v_#valid_74|, #memory_int=|v_#memory_int_18|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t2366~0.base=|v_ULTIMATE.start_main_~#t2366~0.base_34|, ULTIMATE.start_main_~#t2366~0.offset=|v_ULTIMATE.start_main_~#t2366~0.offset_23|, ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_49, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_22|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_49, ~y~0=v_~y~0_22, ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_17|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_54, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_36, #NULL.base=|v_#NULL.base_2|, #StackHeapBarrier=|v_#StackHeapBarrier_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_26|, #valid=|v_#valid_73|, #memory_int=|v_#memory_int_17|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_120, ~z~0=v_~z~0_34, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_25|, ~x~0=v_~x~0_24} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t2366~0.base, ULTIMATE.start_main_~#t2366~0.offset, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2368~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ~y~0, ULTIMATE.start_main_~#t2368~0.base, ~x~0] {4640#true} is VALID [2020-07-28 21:41:02,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {4640#true} [167] L772-->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] {4640#true} is VALID [2020-07-28 21:41:02,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {4640#true} [211] L772-1-->L774: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2367~0.base_11| 4) |v_#length_15|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2367~0.base_11| 1) |v_#valid_33|) (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2367~0.base_11|) |v_ULTIMATE.start_main_~#t2367~0.offset_10| 1))) (not (= 0 |v_ULTIMATE.start_main_~#t2367~0.base_11|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2367~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2367~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_10|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2367~0.offset=|v_ULTIMATE.start_main_~#t2367~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2367~0.base=|v_ULTIMATE.start_main_~#t2367~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2367~0.offset, ULTIMATE.start_main_~#t2367~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4640#true} is VALID [2020-07-28 21:41:02,229 INFO L280 TraceCheckUtils]: 3: Hoare triple {4640#true} [169] L774-->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] {4640#true} is VALID [2020-07-28 21:41:02,229 INFO L280 TraceCheckUtils]: 4: Hoare triple {4640#true} [212] L774-1-->L776: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2368~0.base_12| 4)) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2368~0.base_12| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2368~0.base_12|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) (= 0 |v_ULTIMATE.start_main_~#t2368~0.offset_11|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2368~0.base_12|) |v_ULTIMATE.start_main_~#t2368~0.offset_11| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_12|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2368~0.offset=|v_ULTIMATE.start_main_~#t2368~0.offset_11|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2368~0.base=|v_ULTIMATE.start_main_~#t2368~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2368~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2368~0.base] {4640#true} is VALID [2020-07-28 21:41:02,229 INFO L280 TraceCheckUtils]: 5: Hoare triple {4640#true} [171] L776-->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] {4640#true} is VALID [2020-07-28 21:41:02,230 INFO L280 TraceCheckUtils]: 6: Hoare triple {4640#true} [191] P0ENTRY-->L717: Formula: (and (= 1 v_~z~0_10) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_10, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,232 INFO L280 TraceCheckUtils]: 7: Hoare triple {4642#(= 1 ~z~0)} [150] L717-->L722: 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] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,236 INFO L280 TraceCheckUtils]: 8: Hoare triple {4642#(= 1 ~z~0)} [196] P1ENTRY-->L734: 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] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,240 INFO L280 TraceCheckUtils]: 9: Hoare triple {4642#(= 1 ~z~0)} [202] L722-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= v_~__unbuffered_cnt~0_46 (+ v_~__unbuffered_cnt~0_47 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_47} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_46} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,241 INFO L280 TraceCheckUtils]: 10: Hoare triple {4642#(= 1 ~z~0)} [156] L734-->L737: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,242 INFO L280 TraceCheckUtils]: 11: Hoare triple {4642#(= 1 ~z~0)} [214] L737-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_92 1) v_~__unbuffered_cnt~0_91) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,243 INFO L280 TraceCheckUtils]: 12: Hoare triple {4642#(= 1 ~z~0)} [190] P2ENTRY-->L749: Formula: (and (= v_~__unbuffered_p2_EAX~0_17 v_~y~0_9) (= 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|, ~y~0=v_~y~0_9} 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_17, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_9} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4642#(= 1 ~z~0)} is VALID [2020-07-28 21:41:02,243 INFO L280 TraceCheckUtils]: 13: Hoare triple {4642#(= 1 ~z~0)} [162] L749-->L752: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~z~0_2) InVars {~z~0=v_~z~0_2} OutVars{~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1, ~z~0=v_~z~0_2} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4643#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:02,244 INFO L280 TraceCheckUtils]: 14: Hoare triple {4643#(= 1 ~__unbuffered_p2_EBX~0)} [210] L752-->P2EXIT: Formula: (and (= v_~__unbuffered_cnt~0_73 (+ v_~__unbuffered_cnt~0_74 1)) (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_73, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4643#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:02,245 INFO L280 TraceCheckUtils]: 15: Hoare triple {4643#(= 1 ~__unbuffered_p2_EBX~0)} [209] L776-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_5| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_62))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (= 0 v_~main$tmp_guard0~0_22) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_5|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_12|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4643#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:41:02,246 INFO L280 TraceCheckUtils]: 16: Hoare triple {4643#(= 1 ~__unbuffered_p2_EBX~0)} [224] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p2_EAX~0_36) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_24)) (= 0 v_~__unbuffered_p0_EAX~0_36) (= v_ULTIMATE.start_assume_abort_if_not_~cond_24 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|) (= 0 v_~main$tmp_guard1~0_28) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_28 256)) (= v_~__unbuffered_p2_EBX~0_37 0) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_14)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_36, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_14, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_37, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_24, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_28, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4641#false} is VALID [2020-07-28 21:41:02,246 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 21:41:02,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958935151] [2020-07-28 21:41:02,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:41:02,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:41:02,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691516405] [2020-07-28 21:41:02,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:02,248 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:41:02,248 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:41:02,267 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:02,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:41:02,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:41:02,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:41:02,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:41:02,268 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-07-28 21:41:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,327 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-07-28 21:41:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:41:02,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:41:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:41:02,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:02,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-07-28 21:41:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:41:02,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-07-28 21:41:02,329 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 23 transitions. [2020-07-28 21:41:02,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:41:02,353 INFO L225 Difference]: With dead ends: 53 [2020-07-28 21:41:02,353 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:41:02,354 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 21:41:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:41:02,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:41:02,354 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:41:02,354 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:02,355 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:02,355 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,355 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:41:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:02,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:02,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:02,357 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:02,357 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:41:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:41:02,357 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:41:02,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:02,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:02,357 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:41:02,358 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:41:02,358 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:41:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:41:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:41:02,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:41:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:41:02,358 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:41:02,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:41:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:41:02,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:41:02,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:41:02,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:41:02 BasicIcfg [2020-07-28 21:41:02,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:41:02,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:41:02,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:41:02,366 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:41:02,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:40:56" (3/4) ... [2020-07-28 21:41:02,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:41:02,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:41:02,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:41:02,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:41:02,384 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:41:02,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:41:02,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:41:02,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:41:02,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:41:02,448 INFO L168 Benchmark]: Toolchain (without parser) took 6988.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 961.6 MB in the beginning and 1.2 GB in the end (delta: -229.9 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:02,449 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:02,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:02,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:02,450 INFO L168 Benchmark]: Boogie Preprocessor took 32.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:02,451 INFO L168 Benchmark]: RCFGBuilder took 575.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:02,451 INFO L168 Benchmark]: TraceAbstraction took 5583.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -123.4 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:41:02,452 INFO L168 Benchmark]: Witness Printer took 80.21 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:41:02,454 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 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 650.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 575.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5583.62 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -123.4 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * Witness Printer took 80.21 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 79 ProgramPointsBefore, 31 ProgramPointsAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 666 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2585 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 137 SDtfs, 139 SDslu, 182 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...