./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe026_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/safe026_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 b2b2e31fde2ef5dfcce5dae59ea0e12bc9487d3b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:42:13,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:42:13,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:42:13,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:42:13,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:42:13,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:42:13,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:42:13,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:42:13,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:42:13,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:42:13,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:42:13,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:42:13,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:42:13,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:42:13,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:42:13,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:42:13,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:42:13,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:42:13,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:42:13,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:42:13,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:42:13,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:42:13,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:42:13,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:42:13,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:42:13,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:42:13,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:42:13,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:42:13,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:42:13,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:42:13,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:42:13,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:42:13,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:42:13,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:42:13,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:42:13,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:42:13,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:42:13,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:42:13,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:42:13,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:42:13,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:42:13,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:42:13,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:42:13,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:42:13,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:42:13,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:42:13,221 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:42:13,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:42:13,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:42:13,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:42:13,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:42:13,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:42:13,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:42:13,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:42:13,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:42:13,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:42:13,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:42:13,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:42:13,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:42:13,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:42:13,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:42:13,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:42:13,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:42:13,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:42:13,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:42:13,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:42:13,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:42:13,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:42:13,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:42:13,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:42:13,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:42:13,228 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 -> b2b2e31fde2ef5dfcce5dae59ea0e12bc9487d3b [2020-07-28 21:42:13,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:42:13,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:42:13,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:42:13,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:42:13,555 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:42:13,556 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2020-07-28 21:42:13,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88529b11e/6c165d3e5c8f45b2a2a2ede295366513/FLAG5b2640410 [2020-07-28 21:42:14,126 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:42:14,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe026_tso.opt.i [2020-07-28 21:42:14,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88529b11e/6c165d3e5c8f45b2a2a2ede295366513/FLAG5b2640410 [2020-07-28 21:42:14,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88529b11e/6c165d3e5c8f45b2a2a2ede295366513 [2020-07-28 21:42:14,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:42:14,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:42:14,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:42:14,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:42:14,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:42:14,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:42:14" (1/1) ... [2020-07-28 21:42:14,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:14, skipping insertion in model container [2020-07-28 21:42:14,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:42:14" (1/1) ... [2020-07-28 21:42:14,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:42:14,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:42:14,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:42:14,990 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:42:15,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:42:15,157 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:42:15,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15 WrapperNode [2020-07-28 21:42:15,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:42:15,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:42:15,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:42:15,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:42:15,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:42:15,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:42:15,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:42:15,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:42:15,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (1/1) ... [2020-07-28 21:42:15,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:42:15,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:42:15,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:42:15,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:42:15,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (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 21:42:15,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:42:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:42:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:42:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:42:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:42:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:42:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:42:15,359 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:42:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:42:15,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:42:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:42:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:42:15,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:42:15,363 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 21:42:15,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:42:15,823 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:42:15,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:15 BoogieIcfgContainer [2020-07-28 21:42:15,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:42:15,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:42:15,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:42:15,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:42:15,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:42:14" (1/3) ... [2020-07-28 21:42:15,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a775393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:42:15, skipping insertion in model container [2020-07-28 21:42:15,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:42:15" (2/3) ... [2020-07-28 21:42:15,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a775393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:42:15, skipping insertion in model container [2020-07-28 21:42:15,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:15" (3/3) ... [2020-07-28 21:42:15,840 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.opt.i [2020-07-28 21:42:15,855 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:42:15,855 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:42:15,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:42:15,867 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:42:15,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,909 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,909 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:42:15,939 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:42:15,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:42:15,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:42:15,965 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:42:15,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:42:15,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:42:15,966 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:42:15,966 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:42:15,966 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:42:15,987 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:15,988 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:16,033 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:42:16,033 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:42:16,038 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:42:16,041 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:42:16,077 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:42:16,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:42:16,078 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:42:16,084 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:42:16,085 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:42:18,376 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-07-28 21:42:18,376 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-07-28 21:42:18,380 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:42:18,403 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-07-28 21:42:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-07-28 21:42:18,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:42:18,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:18,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:18,414 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:18,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-07-28 21:42:18,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:18,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882241332] [2020-07-28 21:42:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:18,658 INFO L280 TraceCheckUtils]: 0: Hoare triple {531#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,659 INFO L280 TraceCheckUtils]: 1: Hoare triple {533#(<= ~x~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,660 INFO L280 TraceCheckUtils]: 2: Hoare triple {533#(<= ~x~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,661 INFO L280 TraceCheckUtils]: 3: Hoare triple {533#(<= ~x~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,662 INFO L280 TraceCheckUtils]: 4: Hoare triple {533#(<= ~x~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,662 INFO L280 TraceCheckUtils]: 5: Hoare triple {533#(<= ~x~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,663 INFO L280 TraceCheckUtils]: 6: Hoare triple {533#(<= ~x~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {533#(<= ~x~0 0)} is VALID [2020-07-28 21:42:18,664 INFO L280 TraceCheckUtils]: 7: Hoare triple {533#(<= ~x~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {532#false} is VALID [2020-07-28 21:42:18,667 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 21:42:18,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882241332] [2020-07-28 21:42:18,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:18,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:42:18,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742830087] [2020-07-28 21:42:18,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:42:18,676 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:18,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:18,702 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 21:42:18,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:18,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:18,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:18,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:18,715 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-07-28 21:42:18,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:18,847 INFO L93 Difference]: Finished difference Result 218 states and 604 transitions. [2020-07-28 21:42:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:18,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:42:18,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:18,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:42:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2020-07-28 21:42:18,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 30 transitions. [2020-07-28 21:42:18,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:18,922 INFO L225 Difference]: With dead ends: 218 [2020-07-28 21:42:18,922 INFO L226 Difference]: Without dead ends: 170 [2020-07-28 21:42:18,923 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 21:42:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-28 21:42:18,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:18,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-07-28 21:42:19,012 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:19,013 INFO L82 GeneralOperation]: Start isEquivalent. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:19,013 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:19,013 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,032 INFO L93 Difference]: Finished difference Result 170 states and 452 transitions. [2020-07-28 21:42:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:19,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,034 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,035 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:19,035 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 170 states. [2020-07-28 21:42:19,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,051 INFO L93 Difference]: Finished difference Result 170 states and 452 transitions. [2020-07-28 21:42:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:19,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,053 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,053 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:19,054 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-07-28 21:42:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 452 transitions. [2020-07-28 21:42:19,069 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 452 transitions. Word has length 8 [2020-07-28 21:42:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:19,069 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 452 transitions. [2020-07-28 21:42:19,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-07-28 21:42:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:42:19,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:19,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:19,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:42:19,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:19,072 INFO L82 PathProgramCache]: Analyzing trace with hash 658729482, now seen corresponding path program 1 times [2020-07-28 21:42:19,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:19,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186131936] [2020-07-28 21:42:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:19,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {1434#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,202 INFO L280 TraceCheckUtils]: 3: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,203 INFO L280 TraceCheckUtils]: 4: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,204 INFO L280 TraceCheckUtils]: 5: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,205 INFO L280 TraceCheckUtils]: 6: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,206 INFO L280 TraceCheckUtils]: 7: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {1436#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,207 INFO L280 TraceCheckUtils]: 8: Hoare triple {1436#(<= ~__unbuffered_p2_EAX~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1435#false} is VALID [2020-07-28 21:42:19,208 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 21:42:19,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186131936] [2020-07-28 21:42:19,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:19,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:42:19,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748954583] [2020-07-28 21:42:19,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:42:19,211 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:19,211 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:19,225 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 21:42:19,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:19,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:19,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:19,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:19,227 INFO L87 Difference]: Start difference. First operand 170 states and 452 transitions. Second operand 3 states. [2020-07-28 21:42:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,274 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:19,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:42:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:42:19,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:42:19,277 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2020-07-28 21:42:19,306 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 21:42:19,311 INFO L225 Difference]: With dead ends: 160 [2020-07-28 21:42:19,311 INFO L226 Difference]: Without dead ends: 160 [2020-07-28 21:42:19,312 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 21:42:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-28 21:42:19,321 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,322 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,323 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,324 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,324 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,324 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,324 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,325 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,325 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,325 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,325 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,326 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,326 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,326 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,326 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,326 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,327 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,327 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,327 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,327 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,328 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,329 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,330 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,331 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,332 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,333 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,334 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,335 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,336 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,337 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,338 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,339 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,340 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,341 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,342 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,343 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,344 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,345 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,346 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,347 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-28 21:42:19,358 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:19,358 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:19,358 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:19,358 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,370 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:19,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,371 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,371 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:19,371 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 160 states. [2020-07-28 21:42:19,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,382 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-07-28 21:42:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:19,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,383 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,383 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:19,383 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-28 21:42:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 419 transitions. [2020-07-28 21:42:19,394 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 419 transitions. Word has length 9 [2020-07-28 21:42:19,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:19,394 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 419 transitions. [2020-07-28 21:42:19,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-07-28 21:42:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:42:19,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:19,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:19,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:42:19,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:19,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:19,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1054810361, now seen corresponding path program 1 times [2020-07-28 21:42:19,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:19,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105759468] [2020-07-28 21:42:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:19,489 INFO L280 TraceCheckUtils]: 0: Hoare triple {2239#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,490 INFO L280 TraceCheckUtils]: 1: Hoare triple {2241#(<= ~x~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,491 INFO L280 TraceCheckUtils]: 2: Hoare triple {2241#(<= ~x~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,492 INFO L280 TraceCheckUtils]: 3: Hoare triple {2241#(<= ~x~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,494 INFO L280 TraceCheckUtils]: 4: Hoare triple {2241#(<= ~x~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,495 INFO L280 TraceCheckUtils]: 5: Hoare triple {2241#(<= ~x~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2241#(<= ~x~0 0)} is VALID [2020-07-28 21:42:19,496 INFO L280 TraceCheckUtils]: 6: Hoare triple {2241#(<= ~x~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,497 INFO L280 TraceCheckUtils]: 7: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,498 INFO L280 TraceCheckUtils]: 8: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2242#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:42:19,498 INFO L280 TraceCheckUtils]: 9: Hoare triple {2242#(<= ~__unbuffered_p2_EAX~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2240#false} is VALID [2020-07-28 21:42:19,499 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 21:42:19,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105759468] [2020-07-28 21:42:19,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:19,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:19,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908276030] [2020-07-28 21:42:19,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:19,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:19,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:19,520 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:19,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:19,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:19,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:19,521 INFO L87 Difference]: Start difference. First operand 160 states and 419 transitions. Second operand 4 states. [2020-07-28 21:42:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,604 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-07-28 21:42:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:42:19,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:42:19,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:42:19,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:42:19,650 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:19,658 INFO L225 Difference]: With dead ends: 220 [2020-07-28 21:42:19,658 INFO L226 Difference]: Without dead ends: 148 [2020-07-28 21:42:19,658 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 21:42:19,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-28 21:42:19,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,664 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,665 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,666 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,667 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,668 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,669 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,670 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,671 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,672 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,673 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,674 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,675 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,676 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,677 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,678 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,679 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,680 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,681 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,682 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,683 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,684 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,685 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,686 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,687 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,688 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,689 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,690 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,691 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,692 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,693 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-07-28 21:42:19,694 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:19,694 INFO L82 GeneralOperation]: Start isEquivalent. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:19,694 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:19,694 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,706 INFO L93 Difference]: Finished difference Result 148 states and 377 transitions. [2020-07-28 21:42:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:19,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,707 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:19,707 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 148 states. [2020-07-28 21:42:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,719 INFO L93 Difference]: Finished difference Result 148 states and 377 transitions. [2020-07-28 21:42:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:19,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:19,720 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:19,720 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:19,720 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-07-28 21:42:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-07-28 21:42:19,727 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 10 [2020-07-28 21:42:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:19,728 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-07-28 21:42:19,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-07-28 21:42:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:42:19,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:19,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:19,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:42:19,729 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:19,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 2 times [2020-07-28 21:42:19,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:19,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768173390] [2020-07-28 21:42:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:19,817 INFO L280 TraceCheckUtils]: 0: Hoare triple {3059#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,818 INFO L280 TraceCheckUtils]: 1: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,824 INFO L280 TraceCheckUtils]: 2: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,825 INFO L280 TraceCheckUtils]: 3: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,826 INFO L280 TraceCheckUtils]: 4: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,826 INFO L280 TraceCheckUtils]: 5: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3061#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:19,828 INFO L280 TraceCheckUtils]: 6: Hoare triple {3061#(<= ~__unbuffered_cnt~0 0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} 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] {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:42:19,829 INFO L280 TraceCheckUtils]: 7: Hoare triple {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:42:19,829 INFO L280 TraceCheckUtils]: 8: Hoare triple {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:42:19,831 INFO L280 TraceCheckUtils]: 9: Hoare triple {3062#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3060#false} is VALID [2020-07-28 21:42:19,831 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 21:42:19,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768173390] [2020-07-28 21:42:19,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:19,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:19,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855805579] [2020-07-28 21:42:19,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:19,833 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:19,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:19,846 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:19,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:19,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:19,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:19,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:19,848 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 4 states. [2020-07-28 21:42:19,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:19,978 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2020-07-28 21:42:19,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:42:19,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:42:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:42:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:42:19,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 47 transitions. [2020-07-28 21:42:20,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:20,046 INFO L225 Difference]: With dead ends: 168 [2020-07-28 21:42:20,046 INFO L226 Difference]: Without dead ends: 126 [2020-07-28 21:42:20,046 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 21:42:20,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-28 21:42:20,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,050 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,051 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,052 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,053 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,054 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,055 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,056 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,057 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,058 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,059 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,061 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-28 21:42:20,074 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:20,074 INFO L82 GeneralOperation]: Start isEquivalent. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:20,074 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:20,075 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:20,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,080 INFO L93 Difference]: Finished difference Result 126 states and 291 transitions. [2020-07-28 21:42:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:20,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,081 INFO L74 IsIncluded]: Start isIncluded. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:20,081 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 126 states. [2020-07-28 21:42:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,087 INFO L93 Difference]: Finished difference Result 126 states and 291 transitions. [2020-07-28 21:42:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:20,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,088 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,088 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:20,088 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-28 21:42:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-07-28 21:42:20,094 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 10 [2020-07-28 21:42:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:20,094 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-07-28 21:42:20,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-07-28 21:42:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:42:20,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:20,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:20,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:42:20,095 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:20,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186442, now seen corresponding path program 1 times [2020-07-28 21:42:20,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:20,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366988999] [2020-07-28 21:42:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:20,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {3739#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,178 INFO L280 TraceCheckUtils]: 1: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,179 INFO L280 TraceCheckUtils]: 2: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,180 INFO L280 TraceCheckUtils]: 3: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,181 INFO L280 TraceCheckUtils]: 4: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,181 INFO L280 TraceCheckUtils]: 5: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,187 INFO L280 TraceCheckUtils]: 6: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,189 INFO L280 TraceCheckUtils]: 7: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3741#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,193 INFO L280 TraceCheckUtils]: 8: Hoare triple {3741#(<= ~__unbuffered_cnt~0 0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3742#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:20,195 INFO L280 TraceCheckUtils]: 9: Hoare triple {3742#(<= ~__unbuffered_cnt~0 1)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3743#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:42:20,196 INFO L280 TraceCheckUtils]: 10: Hoare triple {3743#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3740#false} is VALID [2020-07-28 21:42:20,197 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 21:42:20,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366988999] [2020-07-28 21:42:20,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:20,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:42:20,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682603962] [2020-07-28 21:42:20,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:42:20,198 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:20,198 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:42:20,218 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 21:42:20,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:42:20,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:42:20,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:42:20,219 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-07-28 21:42:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,380 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-07-28 21:42:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:42:20,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:42:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:42:20,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2020-07-28 21:42:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:42:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2020-07-28 21:42:20,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 57 transitions. [2020-07-28 21:42:20,493 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:20,495 INFO L225 Difference]: With dead ends: 121 [2020-07-28 21:42:20,495 INFO L226 Difference]: Without dead ends: 93 [2020-07-28 21:42:20,495 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 21:42:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-28 21:42:20,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-07-28 21:42:20,526 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:20,526 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:20,526 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:20,526 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:20,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,531 INFO L93 Difference]: Finished difference Result 93 states and 192 transitions. [2020-07-28 21:42:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:20,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,531 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,532 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:20,532 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 93 states. [2020-07-28 21:42:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,536 INFO L93 Difference]: Finished difference Result 93 states and 192 transitions. [2020-07-28 21:42:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:20,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,537 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,537 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:20,537 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-28 21:42:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-07-28 21:42:20,541 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 11 [2020-07-28 21:42:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:20,541 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-07-28 21:42:20,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:42:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-07-28 21:42:20,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:42:20,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:20,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:20,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:42:20,543 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:20,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:20,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-07-28 21:42:20,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:20,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794093914] [2020-07-28 21:42:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:20,656 INFO L280 TraceCheckUtils]: 0: Hoare triple {4241#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,657 INFO L280 TraceCheckUtils]: 1: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,665 INFO L280 TraceCheckUtils]: 2: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,666 INFO L280 TraceCheckUtils]: 3: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,671 INFO L280 TraceCheckUtils]: 4: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,672 INFO L280 TraceCheckUtils]: 5: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,673 INFO L280 TraceCheckUtils]: 6: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,674 INFO L280 TraceCheckUtils]: 7: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4243#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:42:20,676 INFO L280 TraceCheckUtils]: 8: Hoare triple {4243#(<= ~__unbuffered_cnt~0 0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4244#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:20,677 INFO L280 TraceCheckUtils]: 9: Hoare triple {4244#(<= ~__unbuffered_cnt~0 1)} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4244#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:42:20,679 INFO L280 TraceCheckUtils]: 10: Hoare triple {4244#(<= ~__unbuffered_cnt~0 1)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4245#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:42:20,680 INFO L280 TraceCheckUtils]: 11: Hoare triple {4245#(<= ~__unbuffered_cnt~0 2)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4246#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:42:20,682 INFO L280 TraceCheckUtils]: 12: Hoare triple {4246#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4242#false} is VALID [2020-07-28 21:42:20,683 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 21:42:20,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794093914] [2020-07-28 21:42:20,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:20,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:42:20,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170659293] [2020-07-28 21:42:20,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:42:20,684 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:20,684 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:42:20,704 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:20,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:42:20,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:20,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:42:20,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:42:20,705 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 6 states. [2020-07-28 21:42:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,884 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-07-28 21:42:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:42:20,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:42:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:20,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:42:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:42:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:42:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 49 transitions. [2020-07-28 21:42:20,887 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 49 transitions. [2020-07-28 21:42:20,958 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 21:42:20,960 INFO L225 Difference]: With dead ends: 87 [2020-07-28 21:42:20,960 INFO L226 Difference]: Without dead ends: 78 [2020-07-28 21:42:20,961 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 21:42:20,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-28 21:42:20,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,969 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-28 21:42:20,975 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:20,976 INFO L82 GeneralOperation]: Start isEquivalent. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:20,976 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:20,976 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,978 INFO L93 Difference]: Finished difference Result 78 states and 162 transitions. [2020-07-28 21:42:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:20,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,979 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:20,979 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 78 states. [2020-07-28 21:42:20,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:20,982 INFO L93 Difference]: Finished difference Result 78 states and 162 transitions. [2020-07-28 21:42:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:20,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:20,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:20,982 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:20,982 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-28 21:42:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-07-28 21:42:20,984 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-07-28 21:42:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:20,985 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-07-28 21:42:20,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:42:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-07-28 21:42:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:42:20,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:20,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:20,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:42:20,986 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:20,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-07-28 21:42:20,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:20,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373779999] [2020-07-28 21:42:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:21,039 INFO L280 TraceCheckUtils]: 0: Hoare triple {4650#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {4650#true} is VALID [2020-07-28 21:42:21,039 INFO L280 TraceCheckUtils]: 1: Hoare triple {4650#true} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4650#true} is VALID [2020-07-28 21:42:21,040 INFO L280 TraceCheckUtils]: 2: Hoare triple {4650#true} [181] P0ENTRY-->L713: Formula: (and (= 1 v_~y~0_7) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,041 INFO L280 TraceCheckUtils]: 3: Hoare triple {4652#(= 1 ~y~0)} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,041 INFO L280 TraceCheckUtils]: 4: Hoare triple {4652#(= 1 ~y~0)} [193] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|) (= (+ v_~__unbuffered_cnt~0_79 1) v_~__unbuffered_cnt~0_78)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_78} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,042 INFO L280 TraceCheckUtils]: 5: Hoare triple {4652#(= 1 ~y~0)} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,042 INFO L280 TraceCheckUtils]: 6: Hoare triple {4652#(= 1 ~y~0)} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,043 INFO L280 TraceCheckUtils]: 7: Hoare triple {4652#(= 1 ~y~0)} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,044 INFO L280 TraceCheckUtils]: 8: Hoare triple {4652#(= 1 ~y~0)} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,044 INFO L280 TraceCheckUtils]: 9: Hoare triple {4652#(= 1 ~y~0)} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4652#(= 1 ~y~0)} is VALID [2020-07-28 21:42:21,045 INFO L280 TraceCheckUtils]: 10: Hoare triple {4652#(= 1 ~y~0)} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:21,055 INFO L280 TraceCheckUtils]: 11: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:21,055 INFO L280 TraceCheckUtils]: 12: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:21,056 INFO L280 TraceCheckUtils]: 13: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:21,057 INFO L280 TraceCheckUtils]: 14: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4653#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:42:21,058 INFO L280 TraceCheckUtils]: 15: Hoare triple {4653#(= 1 ~__unbuffered_p2_EBX~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4651#false} is VALID [2020-07-28 21:42:21,058 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 21:42:21,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373779999] [2020-07-28 21:42:21,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:21,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:42:21,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919135951] [2020-07-28 21:42:21,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:42:21,060 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:21,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:42:21,078 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:21,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:42:21,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:21,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:42:21,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:42:21,079 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-07-28 21:42:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,154 INFO L93 Difference]: Finished difference Result 91 states and 183 transitions. [2020-07-28 21:42:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:42:21,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:42:21,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:21,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:42:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:42:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-07-28 21:42:21,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 32 transitions. [2020-07-28 21:42:21,197 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 21:42:21,198 INFO L225 Difference]: With dead ends: 91 [2020-07-28 21:42:21,198 INFO L226 Difference]: Without dead ends: 33 [2020-07-28 21:42:21,198 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 21:42:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-28 21:42:21,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:42:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-28 21:42:21,213 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:21,213 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:21,214 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:21,214 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,215 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:42:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:21,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:21,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:21,219 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:21,220 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:42:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,221 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:42:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:21,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:21,223 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:21,224 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:21,224 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-28 21:42:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-07-28 21:42:21,225 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-07-28 21:42:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:21,226 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-07-28 21:42:21,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:42:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:42:21,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:42:21,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:42:21,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:42:21,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:42:21,228 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:42:21,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:42:21,228 INFO L82 PathProgramCache]: Analyzing trace with hash -867586631, now seen corresponding path program 2 times [2020-07-28 21:42:21,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:42:21,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159858117] [2020-07-28 21:42:21,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:42:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:42:21,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {4881#true} [221] ULTIMATE.startENTRY-->L763: Formula: (let ((.cse0 (store |v_#valid_54| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= 0 |v_#NULL.base_5|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16| 1) |v_#valid_52|) (= 0 v_~y~0_18) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2414~0.base_16|)) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2414~0.base_16|) (= |v_#length_21| (store |v_#length_22| |v_ULTIMATE.start_main_~#t2414~0.base_16| 4)) (= v_~__unbuffered_p2_EBX~0_41 0) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2414~0.base_16|) |v_ULTIMATE.start_main_~#t2414~0.offset_13| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard1~0_45) (= v_~__unbuffered_cnt~0_135 0) (= 0 v_~x~0_57) (= 0 |v_ULTIMATE.start_main_~#t2414~0.offset_13|) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_47))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_13|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_23|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_7|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_15|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, ULTIMATE.start_main_~#t2414~0.base=|v_ULTIMATE.start_main_~#t2414~0.base_16|, #NULL.base=|v_#NULL.base_5|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_12|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_19|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_47, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_135, ULTIMATE.start_main_~#t2414~0.offset=|v_ULTIMATE.start_main_~#t2414~0.offset_13|, ~y~0=v_~y~0_18, ~x~0=v_~x~0_57, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_16|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2415~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2414~0.base, #NULL.base, ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2414~0.offset, ~y~0, ~x~0, ULTIMATE.start_main_~#t2416~0.base] {4881#true} is VALID [2020-07-28 21:42:21,306 INFO L280 TraceCheckUtils]: 1: Hoare triple {4881#true} [160] L763-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4881#true} is VALID [2020-07-28 21:42:21,306 INFO L280 TraceCheckUtils]: 2: Hoare triple {4881#true} [204] L763-1-->L765: Formula: (and (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11| 1)) (not (= 0 |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= |v_ULTIMATE.start_main_~#t2415~0.offset_9| 0) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2415~0.base_11|) |v_ULTIMATE.start_main_~#t2415~0.offset_9| 1)) |v_#memory_int_13|) (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2415~0.base_11| 4)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2415~0.base_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2415~0.offset=|v_ULTIMATE.start_main_~#t2415~0.offset_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_~#t2415~0.base=|v_ULTIMATE.start_main_~#t2415~0.base_11|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2415~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2415~0.base, #valid, #memory_int, #length] {4881#true} is VALID [2020-07-28 21:42:21,307 INFO L280 TraceCheckUtils]: 3: Hoare triple {4881#true} [162] L765-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {4881#true} is VALID [2020-07-28 21:42:21,307 INFO L280 TraceCheckUtils]: 4: Hoare triple {4881#true} [199] L765-1-->L767: Formula: (and (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12| 1) |v_#valid_33|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2416~0.base_12|) |v_ULTIMATE.start_main_~#t2416~0.offset_10| 2)) |v_#memory_int_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2416~0.base_12|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2416~0.base_12| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2416~0.base_12|)) (= 0 |v_ULTIMATE.start_main_~#t2416~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2416~0.offset=|v_ULTIMATE.start_main_~#t2416~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2416~0.base=|v_ULTIMATE.start_main_~#t2416~0.base_12|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2416~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2416~0.base] {4881#true} is VALID [2020-07-28 21:42:21,308 INFO L280 TraceCheckUtils]: 5: Hoare triple {4881#true} [164] L767-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {4881#true} is VALID [2020-07-28 21:42:21,308 INFO L280 TraceCheckUtils]: 6: Hoare triple {4881#true} [188] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_14) (= |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_14} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4881#true} is VALID [2020-07-28 21:42:21,308 INFO L280 TraceCheckUtils]: 7: Hoare triple {4881#true} [177] P2ENTRY-->L740: Formula: (and (= v_~x~0_13 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} 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_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_13} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4881#true} is VALID [2020-07-28 21:42:21,309 INFO L280 TraceCheckUtils]: 8: Hoare triple {4881#true} [195] L728-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_88 (+ v_~__unbuffered_cnt~0_89 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_89} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4881#true} is VALID [2020-07-28 21:42:21,309 INFO L280 TraceCheckUtils]: 9: Hoare triple {4881#true} [155] L740-->L743: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {4881#true} is VALID [2020-07-28 21:42:21,310 INFO L280 TraceCheckUtils]: 10: Hoare triple {4881#true} [181] P0ENTRY-->L713: Formula: (and (= 1 v_~y~0_7) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_7, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4881#true} is VALID [2020-07-28 21:42:21,310 INFO L280 TraceCheckUtils]: 11: Hoare triple {4881#true} [144] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:21,311 INFO L280 TraceCheckUtils]: 12: Hoare triple {4883#(= 1 ~x~0)} [193] L716-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_9|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_9|) (= (+ v_~__unbuffered_cnt~0_79 1) v_~__unbuffered_cnt~0_78)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_79} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_9|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_78} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:21,312 INFO L280 TraceCheckUtils]: 13: Hoare triple {4883#(= 1 ~x~0)} [200] L743-->P2EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_96 1) v_~__unbuffered_cnt~0_95) (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_95, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:21,313 INFO L280 TraceCheckUtils]: 14: Hoare triple {4883#(= 1 ~x~0)} [197] L767-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_90))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_24)) (and .cse0 (= 1 v_~main$tmp_guard0~0_24)))) (= (mod v_~main$tmp_guard0~0_24 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_9, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_90, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_24} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4883#(= 1 ~x~0)} is VALID [2020-07-28 21:42:21,315 INFO L280 TraceCheckUtils]: 15: Hoare triple {4883#(= 1 ~x~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_22 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= (mod v_~main$tmp_guard1~0_33 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|) (= 2 v_~__unbuffered_p2_EAX~0_34) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 2 v_~x~0_44) (= v_~__unbuffered_p2_EBX~0_30 0) (= 0 v_~main$tmp_guard1~0_33) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_22))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_30, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_22, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_34, ~x~0=v_~x~0_44, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_12|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4882#false} is VALID [2020-07-28 21:42:21,315 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 21:42:21,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159858117] [2020-07-28 21:42:21,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:42:21,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:42:21,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723285429] [2020-07-28 21:42:21,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:42:21,317 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:42:21,317 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:42:21,335 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:21,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:42:21,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:42:21,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:42:21,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:21,336 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 3 states. [2020-07-28 21:42:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,361 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-07-28 21:42:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:42:21,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-07-28 21:42:21,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:42:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:42:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:42:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-07-28 21:42:21,365 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2020-07-28 21:42:21,384 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:42:21,384 INFO L225 Difference]: With dead ends: 32 [2020-07-28 21:42:21,385 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:42:21,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:42:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:42:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:42:21,385 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:42:21,385 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:21,386 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:21,386 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,386 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:42:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:21,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:21,386 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:21,386 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:21,386 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:42:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:42:21,387 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:42:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:21,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:21,387 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:42:21,387 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:42:21,387 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:42:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:42:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:42:21,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:42:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:42:21,388 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:42:21,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:42:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:42:21,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:42:21,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:42:21,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:42:21 BasicIcfg [2020-07-28 21:42:21,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:42:21,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:42:21,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:42:21,392 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:42:21,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:42:15" (3/4) ... [2020-07-28 21:42:21,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:42:21,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:42:21,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:42:21,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:42:21,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:42:21,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:42:21,410 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:42:21,462 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:42:21,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:42:21,465 INFO L168 Benchmark]: Toolchain (without parser) took 6976.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.5 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -228.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,466 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:42:21,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.50 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 21:42:21,468 INFO L168 Benchmark]: Boogie Preprocessor took 40.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,468 INFO L168 Benchmark]: RCFGBuilder took 536.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,469 INFO L168 Benchmark]: TraceAbstraction took 5563.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -124.9 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,469 INFO L168 Benchmark]: Witness Printer took 69.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:42:21,477 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 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 667.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.50 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 40.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 536.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5563.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -124.9 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2133 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 142 SDtfs, 123 SDslu, 180 SDs, 0 SdLazy, 103 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...