./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_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/safe035_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 3f991d69e84085b279065f5f6b72863448095e90 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:47:35,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:47:35,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:47:35,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:47:35,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:47:35,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:47:35,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:47:35,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:47:35,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:47:35,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:47:35,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:47:35,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:47:35,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:47:35,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:47:35,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:47:35,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:47:35,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:47:35,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:47:35,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:47:35,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:47:35,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:47:35,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:47:35,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:47:35,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:47:35,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:47:35,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:47:35,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:47:35,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:47:35,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:47:35,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:47:35,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:47:35,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:47:35,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:47:35,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:47:35,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:47:35,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:47:35,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:47:35,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:47:35,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:47:35,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:47:35,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:47:35,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:47:35,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:47:35,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:47:35,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:47:35,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:47:35,740 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:47:35,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:47:35,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:47:35,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:47:35,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:47:35,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:47:35,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:47:35,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:47:35,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:47:35,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:47:35,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:47:35,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:47:35,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:47:35,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:47:35,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:47:35,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:47:35,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:47:35,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:47:35,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:47:35,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:47:35,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:47:35,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:47:35,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:47:35,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:47:35,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:47:35,748 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 -> 3f991d69e84085b279065f5f6b72863448095e90 [2020-07-28 21:47:36,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:47:36,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:47:36,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:47:36,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:47:36,071 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:47:36,072 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.oepc.i [2020-07-28 21:47:36,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2432a07/9dabad5fe63c435aba67db046112a4b1/FLAGad39a7f12 [2020-07-28 21:47:36,740 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:47:36,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.oepc.i [2020-07-28 21:47:36,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2432a07/9dabad5fe63c435aba67db046112a4b1/FLAGad39a7f12 [2020-07-28 21:47:37,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2432a07/9dabad5fe63c435aba67db046112a4b1 [2020-07-28 21:47:37,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:47:37,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:47:37,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:37,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:47:37,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:47:37,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1569f8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37, skipping insertion in model container [2020-07-28 21:47:37,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:47:37,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:47:37,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:37,627 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:47:37,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:47:37,765 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:47:37,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37 WrapperNode [2020-07-28 21:47:37,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:47:37,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:37,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:47:37,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:47:37,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:47:37,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:47:37,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:47:37,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:47:37,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (1/1) ... [2020-07-28 21:47:37,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:47:37,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:47:37,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:47:37,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:47:37,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (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 21:47:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:47:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:47:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:47:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:47:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:47:37,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:47:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:47:37,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:47:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:47:37,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:47:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:47:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:47:37,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:47:37,946 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 21:47:38,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:47:38,394 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:47:38,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38 BoogieIcfgContainer [2020-07-28 21:47:38,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:47:38,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:47:38,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:47:38,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:47:38,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:47:37" (1/3) ... [2020-07-28 21:47:38,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d04116b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:38, skipping insertion in model container [2020-07-28 21:47:38,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:47:37" (2/3) ... [2020-07-28 21:47:38,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d04116b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:47:38, skipping insertion in model container [2020-07-28 21:47:38,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38" (3/3) ... [2020-07-28 21:47:38,408 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2020-07-28 21:47:38,419 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:47:38,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:47:38,428 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:47:38,429 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:47:38,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,462 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:47:38,511 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:47:38,534 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:47:38,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:47:38,534 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:47:38,535 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:47:38,536 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:47:38,536 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:47:38,536 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:47:38,536 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:47:38,560 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,562 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,624 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:38,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:38,630 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:47:38,633 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:47:38,657 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:47:38,658 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:47:38,659 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:47:38,661 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:47:38,662 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:47:40,733 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-07-28 21:47:41,101 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-07-28 21:47:41,101 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:47:41,105 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-07-28 21:47:41,132 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:47:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:47:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:47:41,142 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:41,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:41,143 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:41,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:41,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-07-28 21:47:41,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:41,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841608879] [2020-07-28 21:47:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:41,392 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,393 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [165] L774-->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] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,396 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,397 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [167] L776-->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] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,399 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,400 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [169] L778-->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] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,401 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:47:41,403 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(= 0 ~__unbuffered_p2_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:47:41,405 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 21:47:41,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841608879] [2020-07-28 21:47:41,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:41,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:47:41,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329891931] [2020-07-28 21:47:41,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:41,416 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:41,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:41,440 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 21:47:41,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:41,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:41,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:41,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:41,454 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:47:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,590 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-07-28 21:47:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:41,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:47:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:41,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:41,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:41,658 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:41,658 INFO L226 Difference]: Without dead ends: 202 [2020-07-28 21:47:41,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-28 21:47:41,704 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,706 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,707 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,708 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,709 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,710 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,711 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,712 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,713 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,714 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,715 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,716 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-07-28 21:47:41,757 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:41,758 INFO L82 GeneralOperation]: Start isEquivalent. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,759 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,759 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,779 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,782 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,782 INFO L74 IsIncluded]: Start isIncluded. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,782 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 202 states. [2020-07-28 21:47:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:41,800 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-07-28 21:47:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:41,803 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:41,803 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:41,803 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-28 21:47:41,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-07-28 21:47:41,820 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-07-28 21:47:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:41,821 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-07-28 21:47:41,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-07-28 21:47:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:47:41,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:41,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:41,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:47:41,823 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-07-28 21:47:41,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:41,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444815930] [2020-07-28 21:47:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:41,921 INFO L280 TraceCheckUtils]: 0: Hoare triple {1756#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {1756#true} is VALID [2020-07-28 21:47:41,922 INFO L280 TraceCheckUtils]: 1: Hoare triple {1756#true} [165] L774-->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] {1756#true} is VALID [2020-07-28 21:47:41,922 INFO L280 TraceCheckUtils]: 2: Hoare triple {1756#true} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1756#true} is VALID [2020-07-28 21:47:41,923 INFO L280 TraceCheckUtils]: 3: Hoare triple {1756#true} [167] L776-->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] {1756#true} is VALID [2020-07-28 21:47:41,923 INFO L280 TraceCheckUtils]: 4: Hoare triple {1756#true} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {1756#true} is VALID [2020-07-28 21:47:41,923 INFO L280 TraceCheckUtils]: 5: Hoare triple {1756#true} [169] L778-->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] {1756#true} is VALID [2020-07-28 21:47:41,926 INFO L280 TraceCheckUtils]: 6: Hoare triple {1756#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,927 INFO L280 TraceCheckUtils]: 7: Hoare triple {1758#(= 1 ~y~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,930 INFO L280 TraceCheckUtils]: 8: Hoare triple {1758#(= 1 ~y~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1758#(= 1 ~y~0)} is VALID [2020-07-28 21:47:41,932 INFO L280 TraceCheckUtils]: 9: Hoare triple {1758#(= 1 ~y~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1757#false} is VALID [2020-07-28 21:47:41,932 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 21:47:41,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444815930] [2020-07-28 21:47:41,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:41,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:41,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755946634] [2020-07-28 21:47:41,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:41,936 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:41,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:47:41,960 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:41,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:47:41,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:41,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:47:41,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:47:41,961 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-07-28 21:47:42,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,047 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-07-28 21:47:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:47:42,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:47:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:47:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:47:42,050 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:47:42,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,094 INFO L225 Difference]: With dead ends: 266 [2020-07-28 21:47:42,095 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 21:47:42,096 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 21:47:42,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 21:47:42,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,142 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,143 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,144 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,145 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,146 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,147 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,148 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,149 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,150 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,151 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,152 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,153 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,154 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,155 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,156 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,157 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-28 21:47:42,158 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:42,158 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:42,158 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:42,158 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,166 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:42,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,168 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:42,168 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:47:42,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,176 INFO L93 Difference]: Finished difference Result 140 states and 362 transitions. [2020-07-28 21:47:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:42,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,177 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,177 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:42,177 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 21:47:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-07-28 21:47:42,185 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-07-28 21:47:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:42,185 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-07-28 21:47:42,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:47:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-07-28 21:47:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:47:42,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:42,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:42,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:47:42,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:42,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-07-28 21:47:42,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:42,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217117735] [2020-07-28 21:47:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:42,283 INFO L280 TraceCheckUtils]: 0: Hoare triple {2587#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,283 INFO L280 TraceCheckUtils]: 1: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,284 INFO L280 TraceCheckUtils]: 2: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,285 INFO L280 TraceCheckUtils]: 3: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,285 INFO L280 TraceCheckUtils]: 4: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,286 INFO L280 TraceCheckUtils]: 5: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,287 INFO L280 TraceCheckUtils]: 6: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,287 INFO L280 TraceCheckUtils]: 7: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,288 INFO L280 TraceCheckUtils]: 8: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2589#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,290 INFO L280 TraceCheckUtils]: 9: Hoare triple {2589#(= 0 ~__unbuffered_cnt~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:42,291 INFO L280 TraceCheckUtils]: 10: Hoare triple {2590#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2588#false} is VALID [2020-07-28 21:47:42,292 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 21:47:42,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217117735] [2020-07-28 21:47:42,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:42,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:47:42,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670099357] [2020-07-28 21:47:42,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:42,293 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:42,293 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:42,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:42,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:42,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:42,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:42,309 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-07-28 21:47:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,420 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-07-28 21:47:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:47:42,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:47:42,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-07-28 21:47:42,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 49 transitions. [2020-07-28 21:47:42,486 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,488 INFO L225 Difference]: With dead ends: 165 [2020-07-28 21:47:42,489 INFO L226 Difference]: Without dead ends: 113 [2020-07-28 21:47:42,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-28 21:47:42,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,504 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,505 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,506 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,507 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,508 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,509 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,510 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,511 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,512 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,513 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,514 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,515 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,516 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,517 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,518 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,519 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,520 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,521 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,522 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,523 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,524 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,525 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,526 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,527 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,528 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,529 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-28 21:47:42,530 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:42,530 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:42,531 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:42,531 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:42,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,538 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:42,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,539 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,539 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:42,539 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-28 21:47:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,545 INFO L93 Difference]: Finished difference Result 113 states and 257 transitions. [2020-07-28 21:47:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:42,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:42,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:42,546 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:42,546 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-28 21:47:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-07-28 21:47:42,551 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-07-28 21:47:42,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:42,551 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-07-28 21:47:42,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-07-28 21:47:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:47:42,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:42,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:42,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:47:42,553 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:42,553 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-07-28 21:47:42,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:42,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322636251] [2020-07-28 21:47:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:42,723 INFO L280 TraceCheckUtils]: 0: Hoare triple {3212#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,724 INFO L280 TraceCheckUtils]: 1: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,724 INFO L280 TraceCheckUtils]: 2: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,725 INFO L280 TraceCheckUtils]: 3: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,725 INFO L280 TraceCheckUtils]: 4: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,726 INFO L280 TraceCheckUtils]: 5: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,726 INFO L280 TraceCheckUtils]: 6: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,727 INFO L280 TraceCheckUtils]: 7: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3214#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:42,728 INFO L280 TraceCheckUtils]: 8: Hoare triple {3214#(= 0 ~__unbuffered_cnt~0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,731 INFO L280 TraceCheckUtils]: 9: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3215#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:42,733 INFO L280 TraceCheckUtils]: 10: Hoare triple {3215#(<= ~__unbuffered_cnt~0 1)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:42,734 INFO L280 TraceCheckUtils]: 11: Hoare triple {3216#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3213#false} is VALID [2020-07-28 21:47:42,735 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 21:47:42,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322636251] [2020-07-28 21:47:42,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:42,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:42,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244641942] [2020-07-28 21:47:42,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:42,736 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:42,737 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:47:42,752 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 21:47:42,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:47:42,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:42,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:47:42,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:42,753 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-07-28 21:47:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:42,901 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-07-28 21:47:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:47:42,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-28 21:47:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:47:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2020-07-28 21:47:42,904 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 56 transitions. [2020-07-28 21:47:42,991 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:42,992 INFO L225 Difference]: With dead ends: 111 [2020-07-28 21:47:42,992 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 21:47:42,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:47:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 21:47:42,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:42,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-28 21:47:43,013 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,013 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:43,013 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:43,013 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,017 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:43,017 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:43,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,018 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:43,018 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:47:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,022 INFO L93 Difference]: Finished difference Result 80 states and 159 transitions. [2020-07-28 21:47:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:43,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,023 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,023 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 21:47:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-07-28 21:47:43,026 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-07-28 21:47:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,027 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-07-28 21:47:43,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:47:43,027 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-07-28 21:47:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:47:43,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:43,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:43,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:47:43,028 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:43,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-07-28 21:47:43,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:43,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183254817] [2020-07-28 21:47:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:43,136 INFO L280 TraceCheckUtils]: 0: Hoare triple {3652#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [165] L774-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,138 INFO L280 TraceCheckUtils]: 2: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,138 INFO L280 TraceCheckUtils]: 3: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [167] L776-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,139 INFO L280 TraceCheckUtils]: 4: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,140 INFO L280 TraceCheckUtils]: 5: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [169] L778-->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] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,140 INFO L280 TraceCheckUtils]: 6: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,141 INFO L280 TraceCheckUtils]: 7: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {3654#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:47:43,142 INFO L280 TraceCheckUtils]: 8: Hoare triple {3654#(= 0 ~__unbuffered_cnt~0)} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:43,147 INFO L280 TraceCheckUtils]: 9: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:43,147 INFO L280 TraceCheckUtils]: 10: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {3655#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:47:43,149 INFO L280 TraceCheckUtils]: 11: Hoare triple {3655#(<= ~__unbuffered_cnt~0 1)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3656#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:47:43,151 INFO L280 TraceCheckUtils]: 12: Hoare triple {3656#(<= ~__unbuffered_cnt~0 2)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:47:43,153 INFO L280 TraceCheckUtils]: 13: Hoare triple {3657#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3653#false} is VALID [2020-07-28 21:47:43,154 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 21:47:43,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183254817] [2020-07-28 21:47:43,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:43,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:47:43,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605763661] [2020-07-28 21:47:43,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:43,156 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:43,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:47:43,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:47:43,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:43,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:47:43,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:47:43,181 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-07-28 21:47:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,370 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-07-28 21:47:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:47:43,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:47:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:43,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:47:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:47:43,373 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2020-07-28 21:47:43,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,428 INFO L225 Difference]: With dead ends: 75 [2020-07-28 21:47:43,428 INFO L226 Difference]: Without dead ends: 66 [2020-07-28 21:47:43,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:47:43,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-28 21:47:43,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-28 21:47:43,447 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,447 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:43,447 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:43,448 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,450 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:43,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,451 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,451 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:43,452 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 66 states. [2020-07-28 21:47:43,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,454 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2020-07-28 21:47:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:43,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,455 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,455 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,455 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-28 21:47:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-07-28 21:47:43,458 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-07-28 21:47:43,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,459 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-07-28 21:47:43,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:47:43,459 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-07-28 21:47:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:43,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:43,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:43,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:47:43,460 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-07-28 21:47:43,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:43,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713753431] [2020-07-28 21:47:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:43,507 INFO L280 TraceCheckUtils]: 0: Hoare triple {4001#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {4001#true} is VALID [2020-07-28 21:47:43,507 INFO L280 TraceCheckUtils]: 1: Hoare triple {4001#true} [165] L774-->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] {4001#true} is VALID [2020-07-28 21:47:43,508 INFO L280 TraceCheckUtils]: 2: Hoare triple {4001#true} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4001#true} is VALID [2020-07-28 21:47:43,508 INFO L280 TraceCheckUtils]: 3: Hoare triple {4001#true} [167] L776-->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] {4001#true} is VALID [2020-07-28 21:47:43,508 INFO L280 TraceCheckUtils]: 4: Hoare triple {4001#true} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {4001#true} is VALID [2020-07-28 21:47:43,509 INFO L280 TraceCheckUtils]: 5: Hoare triple {4001#true} [169] L778-->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] {4001#true} is VALID [2020-07-28 21:47:43,509 INFO L280 TraceCheckUtils]: 6: Hoare triple {4001#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4001#true} is VALID [2020-07-28 21:47:43,510 INFO L280 TraceCheckUtils]: 7: Hoare triple {4001#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4001#true} is VALID [2020-07-28 21:47:43,510 INFO L280 TraceCheckUtils]: 8: Hoare triple {4001#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4001#true} is VALID [2020-07-28 21:47:43,511 INFO L280 TraceCheckUtils]: 9: Hoare triple {4001#true} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:43,512 INFO L280 TraceCheckUtils]: 10: Hoare triple {4003#(= 2 ~y~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:43,512 INFO L280 TraceCheckUtils]: 11: Hoare triple {4003#(= 2 ~y~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:43,513 INFO L280 TraceCheckUtils]: 12: Hoare triple {4003#(= 2 ~y~0)} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4003#(= 2 ~y~0)} is VALID [2020-07-28 21:47:43,514 INFO L280 TraceCheckUtils]: 13: Hoare triple {4003#(= 2 ~y~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:43,515 INFO L280 TraceCheckUtils]: 14: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:43,515 INFO L280 TraceCheckUtils]: 15: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4004#(= 2 ~__unbuffered_p1_EAX~0)} is VALID [2020-07-28 21:47:43,516 INFO L280 TraceCheckUtils]: 16: Hoare triple {4004#(= 2 ~__unbuffered_p1_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4002#false} is VALID [2020-07-28 21:47:43,517 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 21:47:43,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713753431] [2020-07-28 21:47:43,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:43,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:43,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210174707] [2020-07-28 21:47:43,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,519 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:43,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:43,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:43,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:43,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:43,540 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-07-28 21:47:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,607 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-07-28 21:47:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:43,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 21:47:43,609 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 29 transitions. [2020-07-28 21:47:43,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,642 INFO L225 Difference]: With dead ends: 85 [2020-07-28 21:47:43,642 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 21:47:43,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 21:47:43,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,656 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:47:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-07-28 21:47:43,656 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,656 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,656 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,657 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,659 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,660 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,660 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:47:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,661 INFO L93 Difference]: Finished difference Result 48 states and 83 transitions. [2020-07-28 21:47:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,662 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,662 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-28 21:47:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-07-28 21:47:43,664 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-07-28 21:47:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,664 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-07-28 21:47:43,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:43,665 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-07-28 21:47:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:47:43,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:47:43,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:47:43,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:47:43,666 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:47:43,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:47:43,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-07-28 21:47:43,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:47:43,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845084142] [2020-07-28 21:47:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:47:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:47:43,729 INFO L280 TraceCheckUtils]: 0: Hoare triple {4287#true} [225] ULTIMATE.startENTRY-->L774: Formula: (let ((.cse0 (store |v_#valid_53| 0 0))) (and (= 0 v_~main$tmp_guard1~0_34) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| 4)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21|)) (= 0 v_~__unbuffered_p1_EAX~0_39) (= v_~__unbuffered_cnt~0_127 0) (= 0 v_~__unbuffered_p0_EAX~0_40) (= 0 v_~x~0_22) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2619~0.base_21|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~y~0_53) (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2619~0.base_21|) |v_ULTIMATE.start_main_~#t2619~0.offset_17| 0)) |v_#memory_int_23|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_#NULL.base_3|) (= 0 |v_#NULL.offset_3|) (< 0 |v_#StackHeapBarrier_15|) (= (store .cse0 |v_ULTIMATE.start_main_~#t2619~0.base_21| 1) |v_#valid_51|) (= 0 |v_ULTIMATE.start_main_~#t2619~0.offset_17|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_53|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_14|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_14|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_40, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_16|, ULTIMATE.start_main_~#t2619~0.base=|v_ULTIMATE.start_main_~#t2619~0.base_21|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_39, ULTIMATE.start_main_~#t2619~0.offset=|v_ULTIMATE.start_main_~#t2619~0.offset_17|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_17|, #valid=|v_#valid_51|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_127, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_16|, ~y~0=v_~y~0_53, ~x~0=v_~x~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2621~0.offset, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2620~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_~#t2619~0.base, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t2619~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t2621~0.base, ~y~0, ~x~0] {4287#true} is VALID [2020-07-28 21:47:43,729 INFO L280 TraceCheckUtils]: 1: Hoare triple {4287#true} [165] L774-->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] {4287#true} is VALID [2020-07-28 21:47:43,730 INFO L280 TraceCheckUtils]: 2: Hoare triple {4287#true} [205] L774-1-->L776: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2620~0.base_10|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| 4)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2620~0.base_10|) |v_ULTIMATE.start_main_~#t2620~0.offset_9| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2620~0.base_10|) (= 0 |v_ULTIMATE.start_main_~#t2620~0.offset_9|) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10| 1) |v_#valid_33|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2620~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2620~0.offset=|v_ULTIMATE.start_main_~#t2620~0.offset_9|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t2620~0.base=|v_ULTIMATE.start_main_~#t2620~0.base_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2620~0.offset, ULTIMATE.start_main_~#t2620~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4287#true} is VALID [2020-07-28 21:47:43,730 INFO L280 TraceCheckUtils]: 3: Hoare triple {4287#true} [167] L776-->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] {4287#true} is VALID [2020-07-28 21:47:43,731 INFO L280 TraceCheckUtils]: 4: Hoare triple {4287#true} [211] L776-1-->L778: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= |v_#memory_int_17| (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2621~0.base_13|) |v_ULTIMATE.start_main_~#t2621~0.offset_11| 2))) (= (store |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13| 1) |v_#valid_37|) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2621~0.base_13| 4) |v_#length_17|) (= 0 (select |v_#valid_38| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) (= 0 |v_ULTIMATE.start_main_~#t2621~0.offset_11|) (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2621~0.base_13|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_38|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_12|, ULTIMATE.start_main_~#t2621~0.offset=|v_ULTIMATE.start_main_~#t2621~0.offset_11|, #valid=|v_#valid_37|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2621~0.base=|v_ULTIMATE.start_main_~#t2621~0.base_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2621~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2621~0.base] {4287#true} is VALID [2020-07-28 21:47:43,731 INFO L280 TraceCheckUtils]: 5: Hoare triple {4287#true} [169] L778-->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] {4287#true} is VALID [2020-07-28 21:47:43,731 INFO L280 TraceCheckUtils]: 6: Hoare triple {4287#true} [182] P2ENTRY-->L749: Formula: (and (= 1 v_~y~0_10) (= 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_10} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~y~0] {4287#true} is VALID [2020-07-28 21:47:43,732 INFO L280 TraceCheckUtils]: 7: Hoare triple {4287#true} [160] L749-->L754: Formula: (= v_~__unbuffered_p2_EAX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EAX~0] {4287#true} is VALID [2020-07-28 21:47:43,732 INFO L280 TraceCheckUtils]: 8: Hoare triple {4287#true} [212] L754-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.base_13|) (= 0 |v_P2Thread1of1ForFork2_#res.offset_13|) (= v_~__unbuffered_cnt~0_111 (+ v_~__unbuffered_cnt~0_112 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_112} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_111, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_13|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4287#true} is VALID [2020-07-28 21:47:43,734 INFO L280 TraceCheckUtils]: 9: Hoare triple {4287#true} [188] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_8) (= |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_8} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,735 INFO L280 TraceCheckUtils]: 10: Hoare triple {4289#(= 1 ~x~0)} [154] L732-->L737: Formula: (= v_~__unbuffered_p1_EAX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_1, ~y~0=v_~y~0_2} AuxVars[] AssignedVars[~__unbuffered_p1_EAX~0] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,737 INFO L280 TraceCheckUtils]: 11: Hoare triple {4289#(= 1 ~x~0)} [181] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= 2 v_~y~0_9)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_9, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4289#(= 1 ~x~0)} is VALID [2020-07-28 21:47:43,738 INFO L280 TraceCheckUtils]: 12: Hoare triple {4289#(= 1 ~x~0)} [148] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,739 INFO L280 TraceCheckUtils]: 13: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [208] L720-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_99 (+ v_~__unbuffered_cnt~0_100 1)) (= 0 |v_P0Thread1of1ForFork0_#res.base_13|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_13|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_100} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_13|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_99} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,740 INFO L280 TraceCheckUtils]: 14: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [206] L737-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,741 INFO L280 TraceCheckUtils]: 15: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [199] L778-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_17 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_65))) (or (and (not .cse0) (= 0 v_~main$tmp_guard0~0_17)) (and .cse0 (= 1 v_~main$tmp_guard0~0_17))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_65, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_17} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4290#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:47:43,742 INFO L280 TraceCheckUtils]: 16: Hoare triple {4290#(= 1 ~__unbuffered_p0_EAX~0)} [223] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_32 256)) (= 2 v_~y~0_51) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_21)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_21 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= 1 v_~__unbuffered_p2_EAX~0_37) (= 0 v_~__unbuffered_p1_EAX~0_37) (= 0 v_~__unbuffered_p0_EAX~0_38) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 0 v_~main$tmp_guard1~0_32)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_38, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_21, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_37, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_32, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_37, ~y~0=v_~y~0_51, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4288#false} is VALID [2020-07-28 21:47:43,743 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 21:47:43,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845084142] [2020-07-28 21:47:43,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:47:43,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:47:43,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698925272] [2020-07-28 21:47:43,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,745 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:47:43,746 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:47:43,766 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:47:43,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:47:43,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:47:43,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:47:43,768 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-07-28 21:47:43,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,827 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2020-07-28 21:47:43,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:47:43,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 21:47:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:47:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:47:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-07-28 21:47:43,828 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 25 transitions. [2020-07-28 21:47:43,864 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:47:43,864 INFO L225 Difference]: With dead ends: 47 [2020-07-28 21:47:43,864 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:47:43,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:47:43,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:47:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:47:43,865 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:47:43,865 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,865 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,866 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,866 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,867 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,867 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,867 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:47:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:47:43,867 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:47:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:47:43,868 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:47:43,868 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:47:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:47:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:47:43,868 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:47:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:47:43,869 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:47:43,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:47:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:47:43,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:47:43,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:47:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:47:43 BasicIcfg [2020-07-28 21:47:43,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:47:43,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:47:43,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:47:43,875 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:47:43,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:47:38" (3/4) ... [2020-07-28 21:47:43,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:47:43,886 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:47:43,887 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:47:43,887 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:47:43,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:47:43,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:47:43,893 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:47:43,940 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:47:43,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:47:43,943 INFO L168 Benchmark]: Toolchain (without parser) took 6932.13 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.6 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -256.9 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,944 INFO L168 Benchmark]: CDTParser took 0.28 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 21:47:43,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.94 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 21:47:43,949 INFO L168 Benchmark]: Boogie Preprocessor took 39.30 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 21:47:43,950 INFO L168 Benchmark]: RCFGBuilder took 531.97 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,950 INFO L168 Benchmark]: TraceAbstraction took 5473.96 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:47:43,953 INFO L168 Benchmark]: Witness Printer took 66.16 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-07-28 21:47:43,958 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 0.28 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 753.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.94 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 39.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 531.97 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5473.96 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 184.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.16 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 140 SDtfs, 119 SDslu, 172 SDs, 0 SdLazy, 105 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2548 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...