./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36f6260f21948a49ae86488b0306ecb0754fecab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:44:20,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:44:20,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:44:20,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:44:20,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:44:20,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:44:20,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:44:20,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:44:20,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:44:20,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:44:20,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:44:20,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:44:20,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:44:20,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:44:20,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:44:20,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:44:20,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:44:20,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:44:20,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:44:20,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:44:20,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:44:20,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:44:20,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:44:20,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:44:20,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:44:20,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:44:20,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:44:20,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:44:20,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:44:20,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:44:20,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:44:20,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:44:20,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:44:20,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:44:20,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:44:20,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:44:20,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:44:20,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:44:20,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:44:20,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:44:20,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:44:20,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:44:20,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:44:20,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:44:20,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:44:20,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:44:20,277 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:44:20,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:44:20,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:44:20,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:44:20,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:44:20,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:44:20,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:44:20,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:44:20,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:44:20,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:44:20,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:44:20,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:44:20,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:44:20,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:44:20,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:44:20,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:44:20,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:44:20,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:44:20,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:44:20,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:44:20,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:44:20,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:44:20,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:44:20,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:44:20,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:44:20,284 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 -> 36f6260f21948a49ae86488b0306ecb0754fecab [2020-07-28 21:44:20,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:44:20,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:44:20,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:44:20,614 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:44:20,615 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:44:20,615 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2020-07-28 21:44:20,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3afce7c/527a984847664783b02a9aa5c4ef4984/FLAG87988fd17 [2020-07-28 21:44:21,188 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:44:21,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2020-07-28 21:44:21,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3afce7c/527a984847664783b02a9aa5c4ef4984/FLAG87988fd17 [2020-07-28 21:44:21,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3afce7c/527a984847664783b02a9aa5c4ef4984 [2020-07-28 21:44:21,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:44:21,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:44:21,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:44:21,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:44:21,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:44:21,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:44:21" (1/1) ... [2020-07-28 21:44:21,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f51621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:21, skipping insertion in model container [2020-07-28 21:44:21,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:44:21" (1/1) ... [2020-07-28 21:44:21,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:44:21,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:44:22,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:44:22,162 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:44:22,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:44:22,297 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:44:22,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22 WrapperNode [2020-07-28 21:44:22,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:44:22,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:44:22,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:44:22,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:44:22,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:44:22,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:44:22,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:44:22,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:44:22,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (1/1) ... [2020-07-28 21:44:22,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:44:22,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:44:22,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:44:22,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:44:22,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (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 21:44:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:44:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:44:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:44:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:44:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:44:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:44:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:44:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:44:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:44:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:44:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:44:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:44:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:44:22,539 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 21:44:22,996 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:44:22,996 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:44:23,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:23 BoogieIcfgContainer [2020-07-28 21:44:23,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:44:23,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:44:23,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:44:23,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:44:23,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:44:21" (1/3) ... [2020-07-28 21:44:23,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27027147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:44:23, skipping insertion in model container [2020-07-28 21:44:23,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:44:22" (2/3) ... [2020-07-28 21:44:23,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27027147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:44:23, skipping insertion in model container [2020-07-28 21:44:23,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:23" (3/3) ... [2020-07-28 21:44:23,011 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-07-28 21:44:23,023 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:44:23,023 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:44:23,032 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:44:23,033 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:44:23,068 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,074 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,075 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,090 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:44:23,111 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:44:23,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:44:23,134 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:44:23,134 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:44:23,134 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:44:23,135 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:44:23,135 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:44:23,135 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:44:23,135 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:44:23,151 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:23,154 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:23,198 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:44:23,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:44:23,204 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 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:44:23,206 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-07-28 21:44:23,242 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-07-28 21:44:23,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:44:23,246 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 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:44:23,249 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:44:23,252 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:44:25,565 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-07-28 21:44:25,565 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-07-28 21:44:25,571 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-07-28 21:44:25,604 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-07-28 21:44:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-07-28 21:44:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:44:25,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:25,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:25,621 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-07-28 21:44:25,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:25,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953107295] [2020-07-28 21:44:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:25,841 INFO L280 TraceCheckUtils]: 0: Hoare triple {803#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {803#true} is VALID [2020-07-28 21:44:25,841 INFO L280 TraceCheckUtils]: 1: Hoare triple {803#true} [161] L764-->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] {803#true} is VALID [2020-07-28 21:44:25,842 INFO L280 TraceCheckUtils]: 2: Hoare triple {803#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {803#true} is VALID [2020-07-28 21:44:25,842 INFO L280 TraceCheckUtils]: 3: Hoare triple {803#true} [163] L766-->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] {803#true} is VALID [2020-07-28 21:44:25,843 INFO L280 TraceCheckUtils]: 4: Hoare triple {803#true} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {803#true} is VALID [2020-07-28 21:44:25,843 INFO L280 TraceCheckUtils]: 5: Hoare triple {803#true} [165] L768-->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] {803#true} is VALID [2020-07-28 21:44:25,850 INFO L280 TraceCheckUtils]: 6: Hoare triple {803#true} [215] L768-1-->L7: Formula: false InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_12|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_12, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_30, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_10|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {804#false} is VALID [2020-07-28 21:44:25,850 INFO L280 TraceCheckUtils]: 7: Hoare triple {804#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {804#false} is VALID [2020-07-28 21:44:25,853 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 21:44:25,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953107295] [2020-07-28 21:44:25,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:25,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:44:25,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028314299] [2020-07-28 21:44:25,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:44:25,863 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:25,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 21:44:25,886 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 21:44:25,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 21:44:25,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:25,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 21:44:25,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:44:25,899 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-07-28 21:44:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,033 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-07-28 21:44:26,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 21:44:26,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-07-28 21:44:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:44:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:44:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 21:44:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2020-07-28 21:44:26,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 20 transitions. [2020-07-28 21:44:26,070 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:26,100 INFO L225 Difference]: With dead ends: 362 [2020-07-28 21:44:26,100 INFO L226 Difference]: Without dead ends: 298 [2020-07-28 21:44:26,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 21:44:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-28 21:44:26,158 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,160 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,262 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,263 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,264 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,265 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,266 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,267 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,268 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-07-28 21:44:26,270 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:26,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:26,271 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:26,271 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,302 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:44:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:26,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:26,306 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:26,306 INFO L74 IsIncluded]: Start isIncluded. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:26,307 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 298 states. [2020-07-28 21:44:26,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,335 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2020-07-28 21:44:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:26,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:26,338 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:26,338 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:26,338 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-07-28 21:44:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-07-28 21:44:26,362 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-07-28 21:44:26,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:26,362 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-07-28 21:44:26,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 21:44:26,363 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-07-28 21:44:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:44:26,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:26,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:26,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:44:26,364 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:26,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-07-28 21:44:26,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:26,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225090939] [2020-07-28 21:44:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:26,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {2361#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,463 INFO L280 TraceCheckUtils]: 1: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,463 INFO L280 TraceCheckUtils]: 2: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,464 INFO L280 TraceCheckUtils]: 3: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,465 INFO L280 TraceCheckUtils]: 4: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,466 INFO L280 TraceCheckUtils]: 5: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {2363#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,467 INFO L280 TraceCheckUtils]: 6: Hoare triple {2363#(= 0 ~__unbuffered_cnt~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2362#false} is VALID [2020-07-28 21:44:26,467 INFO L280 TraceCheckUtils]: 7: Hoare triple {2362#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2362#false} is VALID [2020-07-28 21:44:26,467 INFO L280 TraceCheckUtils]: 8: Hoare triple {2362#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {2362#false} is VALID [2020-07-28 21:44:26,468 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 21:44:26,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225090939] [2020-07-28 21:44:26,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:26,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:44:26,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357245486] [2020-07-28 21:44:26,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:44:26,471 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:26,471 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:44:26,485 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 21:44:26,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:44:26,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:26,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:44:26,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:44:26,486 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-07-28 21:44:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,541 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:44:26,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:44:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:44:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:44:26,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:44:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2020-07-28 21:44:26,543 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2020-07-28 21:44:26,585 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 21:44:26,592 INFO L225 Difference]: With dead ends: 217 [2020-07-28 21:44:26,593 INFO L226 Difference]: Without dead ends: 217 [2020-07-28 21:44:26,593 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 21:44:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-28 21:44:26,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,602 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,603 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,604 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,605 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,606 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,607 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,608 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,609 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,610 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,611 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,612 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,613 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,614 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,615 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,616 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,617 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-07-28 21:44:26,646 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:26,646 INFO L82 GeneralOperation]: Start isEquivalent. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:26,646 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:26,647 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,658 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:26,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:26,658 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:26,659 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:26,659 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 217 states. [2020-07-28 21:44:26,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,670 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-07-28 21:44:26,670 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:26,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:26,671 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:26,671 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:26,671 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-28 21:44:26,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-07-28 21:44:26,682 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-07-28 21:44:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:26,682 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-07-28 21:44:26,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:44:26,682 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-07-28 21:44:26,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:44:26,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:26,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:26,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:44:26,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:26,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:26,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-07-28 21:44:26,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:26,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417842988] [2020-07-28 21:44:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:26,806 INFO L280 TraceCheckUtils]: 0: Hoare triple {3451#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,807 INFO L280 TraceCheckUtils]: 1: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,808 INFO L280 TraceCheckUtils]: 2: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,808 INFO L280 TraceCheckUtils]: 3: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,809 INFO L280 TraceCheckUtils]: 4: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,810 INFO L280 TraceCheckUtils]: 5: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,810 INFO L280 TraceCheckUtils]: 6: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,811 INFO L280 TraceCheckUtils]: 7: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {3453#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:26,812 INFO L280 TraceCheckUtils]: 8: Hoare triple {3453#(= 0 ~__unbuffered_cnt~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3454#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:26,813 INFO L280 TraceCheckUtils]: 9: Hoare triple {3454#(<= ~__unbuffered_cnt~0 1)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3452#false} is VALID [2020-07-28 21:44:26,813 INFO L280 TraceCheckUtils]: 10: Hoare triple {3452#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3452#false} is VALID [2020-07-28 21:44:26,814 INFO L280 TraceCheckUtils]: 11: Hoare triple {3452#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {3452#false} is VALID [2020-07-28 21:44:26,815 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 21:44:26,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417842988] [2020-07-28 21:44:26,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:26,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:26,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947918710] [2020-07-28 21:44:26,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:44:26,818 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:26,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:26,836 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:26,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:26,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:26,837 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-07-28 21:44:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:26,939 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:26,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:26,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:44:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:44:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2020-07-28 21:44:26,942 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 43 transitions. [2020-07-28 21:44:27,014 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:27,017 INFO L225 Difference]: With dead ends: 136 [2020-07-28 21:44:27,017 INFO L226 Difference]: Without dead ends: 136 [2020-07-28 21:44:27,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-28 21:44:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,040 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,041 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,042 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,043 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,044 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,045 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,046 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,047 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,048 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-28 21:44:27,048 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:27,049 INFO L82 GeneralOperation]: Start isEquivalent. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:27,049 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:27,049 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,054 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:27,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,055 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:27,055 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 136 states. [2020-07-28 21:44:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,061 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-07-28 21:44:27,061 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:27,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:27,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-28 21:44:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-07-28 21:44:27,068 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-07-28 21:44:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:27,068 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-07-28 21:44:27,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:27,068 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-07-28 21:44:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:44:27,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:27,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:27,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:44:27,069 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:27,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-07-28 21:44:27,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:27,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780264081] [2020-07-28 21:44:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:27,144 INFO L280 TraceCheckUtils]: 0: Hoare triple {4137#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,145 INFO L280 TraceCheckUtils]: 1: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [161] L764-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,146 INFO L280 TraceCheckUtils]: 2: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,147 INFO L280 TraceCheckUtils]: 3: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [163] L766-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,147 INFO L280 TraceCheckUtils]: 4: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,148 INFO L280 TraceCheckUtils]: 5: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [165] L768-->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] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,148 INFO L280 TraceCheckUtils]: 6: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,149 INFO L280 TraceCheckUtils]: 7: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,150 INFO L280 TraceCheckUtils]: 8: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4139#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:44:27,150 INFO L280 TraceCheckUtils]: 9: Hoare triple {4139#(= 0 ~__unbuffered_cnt~0)} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4140#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:27,151 INFO L280 TraceCheckUtils]: 10: Hoare triple {4140#(<= ~__unbuffered_cnt~0 1)} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {4140#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:44:27,157 INFO L280 TraceCheckUtils]: 11: Hoare triple {4140#(<= ~__unbuffered_cnt~0 1)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4141#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:44:27,158 INFO L280 TraceCheckUtils]: 12: Hoare triple {4141#(<= ~__unbuffered_cnt~0 2)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4138#false} is VALID [2020-07-28 21:44:27,159 INFO L280 TraceCheckUtils]: 13: Hoare triple {4138#false} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4138#false} is VALID [2020-07-28 21:44:27,159 INFO L280 TraceCheckUtils]: 14: Hoare triple {4138#false} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4138#false} is VALID [2020-07-28 21:44:27,160 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 21:44:27,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780264081] [2020-07-28 21:44:27,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:27,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:44:27,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315481828] [2020-07-28 21:44:27,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:44:27,161 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:27,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:44:27,187 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:27,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:44:27,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:27,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:44:27,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:27,189 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-07-28 21:44:27,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,308 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:44:27,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-28 21:44:27,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:44:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:44:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:44:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:44:27,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:44:27,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:27,375 INFO L225 Difference]: With dead ends: 109 [2020-07-28 21:44:27,375 INFO L226 Difference]: Without dead ends: 109 [2020-07-28 21:44:27,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:44:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-28 21:44:27,379 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,380 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,381 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,382 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,383 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,384 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,385 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,386 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,387 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,388 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,389 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,390 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,391 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,392 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-28 21:44:27,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:27,401 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:27,402 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:27,402 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,420 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:27,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,423 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,424 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:27,424 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 109 states. [2020-07-28 21:44:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,427 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-07-28 21:44:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:27,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,428 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,428 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:27,428 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-28 21:44:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-07-28 21:44:27,431 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-07-28 21:44:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:27,431 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-07-28 21:44:27,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:44:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-07-28 21:44:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:27,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:27,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:27,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:44:27,432 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:27,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:27,433 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-07-28 21:44:27,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:27,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320853899] [2020-07-28 21:44:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:27,582 INFO L280 TraceCheckUtils]: 0: Hoare triple {4689#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {4689#true} is VALID [2020-07-28 21:44:27,583 INFO L280 TraceCheckUtils]: 1: Hoare triple {4689#true} [161] L764-->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] {4689#true} is VALID [2020-07-28 21:44:27,584 INFO L280 TraceCheckUtils]: 2: Hoare triple {4689#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {4689#true} is VALID [2020-07-28 21:44:27,584 INFO L280 TraceCheckUtils]: 3: Hoare triple {4689#true} [163] L766-->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] {4689#true} is VALID [2020-07-28 21:44:27,585 INFO L280 TraceCheckUtils]: 4: Hoare triple {4689#true} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {4689#true} is VALID [2020-07-28 21:44:27,585 INFO L280 TraceCheckUtils]: 5: Hoare triple {4689#true} [165] L768-->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] {4689#true} is VALID [2020-07-28 21:44:27,585 INFO L280 TraceCheckUtils]: 6: Hoare triple {4689#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4689#true} is VALID [2020-07-28 21:44:27,586 INFO L280 TraceCheckUtils]: 7: Hoare triple {4689#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4689#true} is VALID [2020-07-28 21:44:27,586 INFO L280 TraceCheckUtils]: 8: Hoare triple {4689#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {4689#true} is VALID [2020-07-28 21:44:27,586 INFO L280 TraceCheckUtils]: 9: Hoare triple {4689#true} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4689#true} is VALID [2020-07-28 21:44:27,586 INFO L280 TraceCheckUtils]: 10: Hoare triple {4689#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {4689#true} is VALID [2020-07-28 21:44:27,587 INFO L280 TraceCheckUtils]: 11: Hoare triple {4689#true} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4689#true} is VALID [2020-07-28 21:44:27,587 INFO L280 TraceCheckUtils]: 12: Hoare triple {4689#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4689#true} is VALID [2020-07-28 21:44:27,589 INFO L280 TraceCheckUtils]: 13: Hoare triple {4689#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:27,590 INFO L280 TraceCheckUtils]: 14: Hoare triple {4691#(= 1 ~y~0)} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:27,591 INFO L280 TraceCheckUtils]: 15: Hoare triple {4691#(= 1 ~y~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4691#(= 1 ~y~0)} is VALID [2020-07-28 21:44:27,593 INFO L280 TraceCheckUtils]: 16: Hoare triple {4691#(= 1 ~y~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4692#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:27,594 INFO L280 TraceCheckUtils]: 17: Hoare triple {4692#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {4690#false} is VALID [2020-07-28 21:44:27,595 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 21:44:27,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320853899] [2020-07-28 21:44:27,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:27,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:27,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046075867] [2020-07-28 21:44:27,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:27,597 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:27,597 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:27,623 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 21:44:27,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:27,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:27,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:27,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:27,625 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-07-28 21:44:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,738 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-07-28 21:44:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:27,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:44:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:44:27,741 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:44:27,799 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 21:44:27,800 INFO L225 Difference]: With dead ends: 135 [2020-07-28 21:44:27,801 INFO L226 Difference]: Without dead ends: 85 [2020-07-28 21:44:27,801 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 21:44:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-28 21:44:27,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:27,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-28 21:44:27,833 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:27,834 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:27,834 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:27,834 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,837 INFO L93 Difference]: Finished difference Result 85 states and 177 transitions. [2020-07-28 21:44:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:27,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,837 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,837 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:27,838 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:44:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:27,840 INFO L93 Difference]: Finished difference Result 85 states and 177 transitions. [2020-07-28 21:44:27,840 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:27,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:27,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:27,841 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:27,841 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 21:44:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-07-28 21:44:27,844 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-07-28 21:44:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:27,844 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-07-28 21:44:27,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-07-28 21:44:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:27,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:27,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:27,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:44:27,845 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:27,846 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-07-28 21:44:27,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:27,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369472598] [2020-07-28 21:44:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:27,965 INFO L280 TraceCheckUtils]: 0: Hoare triple {5172#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {5172#true} is VALID [2020-07-28 21:44:27,966 INFO L280 TraceCheckUtils]: 1: Hoare triple {5172#true} [161] L764-->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] {5172#true} is VALID [2020-07-28 21:44:27,966 INFO L280 TraceCheckUtils]: 2: Hoare triple {5172#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {5172#true} is VALID [2020-07-28 21:44:27,967 INFO L280 TraceCheckUtils]: 3: Hoare triple {5172#true} [163] L766-->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] {5172#true} is VALID [2020-07-28 21:44:27,967 INFO L280 TraceCheckUtils]: 4: Hoare triple {5172#true} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {5172#true} is VALID [2020-07-28 21:44:27,968 INFO L280 TraceCheckUtils]: 5: Hoare triple {5172#true} [165] L768-->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] {5172#true} is VALID [2020-07-28 21:44:27,968 INFO L280 TraceCheckUtils]: 6: Hoare triple {5172#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5172#true} is VALID [2020-07-28 21:44:27,968 INFO L280 TraceCheckUtils]: 7: Hoare triple {5172#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5172#true} is VALID [2020-07-28 21:44:27,969 INFO L280 TraceCheckUtils]: 8: Hoare triple {5172#true} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5172#true} is VALID [2020-07-28 21:44:27,969 INFO L280 TraceCheckUtils]: 9: Hoare triple {5172#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5172#true} is VALID [2020-07-28 21:44:27,970 INFO L280 TraceCheckUtils]: 10: Hoare triple {5172#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5172#true} is VALID [2020-07-28 21:44:27,970 INFO L280 TraceCheckUtils]: 11: Hoare triple {5172#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {5172#true} is VALID [2020-07-28 21:44:27,970 INFO L280 TraceCheckUtils]: 12: Hoare triple {5172#true} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5172#true} is VALID [2020-07-28 21:44:27,971 INFO L280 TraceCheckUtils]: 13: Hoare triple {5172#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:27,972 INFO L280 TraceCheckUtils]: 14: Hoare triple {5174#(= 1 ~z~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:27,973 INFO L280 TraceCheckUtils]: 15: Hoare triple {5174#(= 1 ~z~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5174#(= 1 ~z~0)} is VALID [2020-07-28 21:44:27,974 INFO L280 TraceCheckUtils]: 16: Hoare triple {5174#(= 1 ~z~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5175#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:27,975 INFO L280 TraceCheckUtils]: 17: Hoare triple {5175#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5173#false} is VALID [2020-07-28 21:44:27,976 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 21:44:27,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369472598] [2020-07-28 21:44:27,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:27,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:27,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127468790] [2020-07-28 21:44:27,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:27,978 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:27,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:28,007 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 21:44:28,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:28,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:28,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:28,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:28,008 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-07-28 21:44:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,095 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-07-28 21:44:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:28,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-07-28 21:44:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-07-28 21:44:28,097 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 26 transitions. [2020-07-28 21:44:28,133 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:28,134 INFO L225 Difference]: With dead ends: 99 [2020-07-28 21:44:28,135 INFO L226 Difference]: Without dead ends: 37 [2020-07-28 21:44:28,135 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 21:44:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-28 21:44:28,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:44:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-28 21:44:28,172 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:28,172 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:28,172 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:28,173 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,174 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2020-07-28 21:44:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:28,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:28,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:28,174 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:28,174 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states. [2020-07-28 21:44:28,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,175 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2020-07-28 21:44:28,176 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:28,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:28,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:28,176 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:28,176 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-28 21:44:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-07-28 21:44:28,177 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-07-28 21:44:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:28,177 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-07-28 21:44:28,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-07-28 21:44:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 21:44:28,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:44:28,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:44:28,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:44:28,178 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:44:28,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:44:28,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-07-28 21:44:28,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:44:28,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248436229] [2020-07-28 21:44:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:44:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:44:28,237 INFO L280 TraceCheckUtils]: 0: Hoare triple {5427#true} [216] ULTIMATE.startENTRY-->L764: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 |v_#NULL.base_5|) (= 0 v_~z~0_46) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2507~0.base_18|) |v_ULTIMATE.start_main_~#t2507~0.offset_14| 0)) |v_#memory_int_17|) (= 0 v_~x~0_44) (= 0 |v_#NULL.offset_5|) (= 0 v_~main$tmp_guard0~0_39) (= 0 v_~main$tmp_guard1~0_33) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2507~0.base_18| 4) |v_#length_21|) (= 0 v_~y~0_44) (= v_~__unbuffered_cnt~0_162 0) (= |v_#valid_51| (store .cse0 |v_ULTIMATE.start_main_~#t2507~0.base_18| 1)) (= 0 |v_ULTIMATE.start_main_~#t2507~0.offset_14|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2507~0.base_18|) (< 0 |v_#StackHeapBarrier_15|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_18|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2507~0.base=|v_ULTIMATE.start_main_~#t2507~0.base_18|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_30|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_5|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_33, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_39, #NULL.base=|v_#NULL.base_5|, ULTIMATE.start_main_~#t2507~0.offset=|v_ULTIMATE.start_main_~#t2507~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_51|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_13|, #memory_int=|v_#memory_int_17|, #length=|v_#length_21|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_162, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_17|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_15|, ~z~0=v_~z~0_46, ~y~0=v_~y~0_44, ~x~0=v_~x~0_44} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2507~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2507~0.offset, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_~#t2509~0.offset, #memory_int, #length, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2508~0.base, ULTIMATE.start_main_~#t2509~0.base, ~z~0, ~y~0, ~x~0] {5427#true} is VALID [2020-07-28 21:44:28,237 INFO L280 TraceCheckUtils]: 1: Hoare triple {5427#true} [161] L764-->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] {5427#true} is VALID [2020-07-28 21:44:28,238 INFO L280 TraceCheckUtils]: 2: Hoare triple {5427#true} [208] L764-1-->L766: Formula: (and (= |v_#length_17| (store |v_#length_18| |v_ULTIMATE.start_main_~#t2508~0.base_11| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2508~0.base_11|) |v_ULTIMATE.start_main_~#t2508~0.offset_10| 1)) |v_#memory_int_13|) (= (store |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11| 1) |v_#valid_39|) (= 0 (select |v_#valid_40| |v_ULTIMATE.start_main_~#t2508~0.base_11|)) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2508~0.base_11|) (= 0 |v_ULTIMATE.start_main_~#t2508~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_40|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2508~0.offset=|v_ULTIMATE.start_main_~#t2508~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_39|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2508~0.base=|v_ULTIMATE.start_main_~#t2508~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2508~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2508~0.base] {5427#true} is VALID [2020-07-28 21:44:28,238 INFO L280 TraceCheckUtils]: 3: Hoare triple {5427#true} [163] L766-->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] {5427#true} is VALID [2020-07-28 21:44:28,239 INFO L280 TraceCheckUtils]: 4: Hoare triple {5427#true} [197] L766-1-->L768: Formula: (and (= (store |v_#length_16| |v_ULTIMATE.start_main_~#t2509~0.base_13| 4) |v_#length_15|) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2509~0.base_13|) |v_ULTIMATE.start_main_~#t2509~0.offset_11| 2)) |v_#memory_int_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2509~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2509~0.offset_11|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2509~0.base_13|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2509~0.base_13|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2509~0.offset=|v_ULTIMATE.start_main_~#t2509~0.offset_11|, #valid=|v_#valid_33|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #memory_int=|v_#memory_int_11|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2509~0.base=|v_ULTIMATE.start_main_~#t2509~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2509~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2509~0.base] {5427#true} is VALID [2020-07-28 21:44:28,239 INFO L280 TraceCheckUtils]: 5: Hoare triple {5427#true} [165] L768-->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] {5427#true} is VALID [2020-07-28 21:44:28,239 INFO L280 TraceCheckUtils]: 6: Hoare triple {5427#true} [191] P1ENTRY-->L726: Formula: (and (= 2 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5427#true} is VALID [2020-07-28 21:44:28,239 INFO L280 TraceCheckUtils]: 7: Hoare triple {5427#true} [150] L726-->L729: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5427#true} is VALID [2020-07-28 21:44:28,240 INFO L280 TraceCheckUtils]: 8: Hoare triple {5427#true} [185] P2ENTRY-->L741: Formula: (and (= 2 v_~y~0_6) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_6} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {5427#true} is VALID [2020-07-28 21:44:28,240 INFO L280 TraceCheckUtils]: 9: Hoare triple {5427#true} [201] L729-->P1EXIT: Formula: (and (= v_~__unbuffered_cnt~0_66 (+ v_~__unbuffered_cnt~0_67 1)) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_67} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_66, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5427#true} is VALID [2020-07-28 21:44:28,240 INFO L280 TraceCheckUtils]: 10: Hoare triple {5427#true} [156] L741-->L744: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {5427#true} is VALID [2020-07-28 21:44:28,240 INFO L280 TraceCheckUtils]: 11: Hoare triple {5427#true} [169] P0ENTRY-->L711: Formula: (and (= 2 v_~z~0_5) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_5, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5427#true} is VALID [2020-07-28 21:44:28,242 INFO L280 TraceCheckUtils]: 12: Hoare triple {5427#true} [144] L711-->L714: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:28,243 INFO L280 TraceCheckUtils]: 13: Hoare triple {5429#(= 1 ~x~0)} [203] L714-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_85 1) v_~__unbuffered_cnt~0_84)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_85} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_84} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:28,243 INFO L280 TraceCheckUtils]: 14: Hoare triple {5429#(= 1 ~x~0)} [204] L744-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_15|) (= 0 |v_P2Thread1of1ForFork2_#res.base_15|) (= v_~__unbuffered_cnt~0_96 (+ v_~__unbuffered_cnt~0_97 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_15|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_96, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_15|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:28,244 INFO L280 TraceCheckUtils]: 15: Hoare triple {5429#(= 1 ~x~0)} [211] L768-1-->L2-1: Formula: (and (= v_ULTIMATE.start_assume_abort_if_not_~cond_13 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= v_~__unbuffered_cnt~0_103 3) (= (mod v_~main$tmp_guard0~0_26 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|) (= 1 v_~main$tmp_guard0~0_26)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_9|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_13, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_26} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5429#(= 1 ~x~0)} is VALID [2020-07-28 21:44:28,245 INFO L280 TraceCheckUtils]: 16: Hoare triple {5429#(= 1 ~x~0)} [200] L2-1-->L7: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|) (let ((.cse1 (= 2 v_~z~0_27)) (.cse2 (= 2 v_~x~0_26)) (.cse0 (= 2 v_~y~0_27))) (or (and .cse0 .cse1 .cse2 (= 0 v_~main$tmp_guard1~0_24)) (and (= 1 v_~main$tmp_guard1~0_24) (or (not .cse1) (not .cse2) (not .cse0)))))) InVars {~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_9, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~z~0=v_~z~0_27, ~y~0=v_~y~0_27, ~x~0=v_~x~0_26, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_7|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5430#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} is VALID [2020-07-28 21:44:28,246 INFO L280 TraceCheckUtils]: 17: Hoare triple {5430#(or (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression|) (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression| 255) 0))} [205] L7-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_10) (= v_ULTIMATE.start___VERIFIER_assert_~expression_10 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|)) InVars {ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_10, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_8|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression] {5428#false} is VALID [2020-07-28 21:44:28,247 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 21:44:28,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248436229] [2020-07-28 21:44:28,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:44:28,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:44:28,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331804616] [2020-07-28 21:44:28,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:28,248 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:44:28,249 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:44:28,276 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 21:44:28,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:44:28,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:44:28,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:44:28,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:44:28,277 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-07-28 21:44:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,337 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:44:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:44:28,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 21:44:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:44:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:44:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:44:28,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:44:28,339 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2020-07-28 21:44:28,364 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:44:28,364 INFO L225 Difference]: With dead ends: 36 [2020-07-28 21:44:28,364 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:44:28,365 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 21:44:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:44:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:44:28,366 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:44:28,366 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:28,366 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:28,366 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:28,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,366 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:44:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:28,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:28,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:28,367 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:28,367 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:44:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:44:28,367 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:44:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:28,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:28,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:44:28,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:44:28,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:44:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:44:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:44:28,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 21:44:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:44:28,370 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:44:28,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:44:28,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:44:28,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:44:28,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:44:28,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:44:28 BasicIcfg [2020-07-28 21:44:28,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:44:28,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:44:28,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:44:28,375 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:44:28,375 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:44:23" (3/4) ... [2020-07-28 21:44:28,378 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:44:28,385 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:44:28,385 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:44:28,385 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:44:28,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:44:28,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:44:28,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:44:28,439 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:44:28,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:44:28,442 INFO L168 Benchmark]: Toolchain (without parser) took 6899.20 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.8 MB). Free memory was 946.8 MB in the beginning and 1.3 GB in the end (delta: -322.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:28,443 INFO L168 Benchmark]: CDTParser took 0.31 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 21:44:28,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:28,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.72 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 21:44:28,444 INFO L168 Benchmark]: Boogie Preprocessor took 61.97 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 21:44:28,445 INFO L168 Benchmark]: RCFGBuilder took 540.24 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:28,445 INFO L168 Benchmark]: TraceAbstraction took 5371.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -210.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:44:28,446 INFO L168 Benchmark]: Witness Printer took 64.31 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:44:28,449 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 0.31 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 754.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.72 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 61.97 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 540.24 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5371.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -210.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 64.31 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 692 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 128 SDtfs, 70 SDslu, 159 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2675 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...