./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe003_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/safe003_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 ffa3d69a9c865824f83c880e63b98070c1187437 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:28:09,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:28:09,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:28:09,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:28:09,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:28:09,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:28:09,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:28:09,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:28:09,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:28:09,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:28:09,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:28:09,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:28:09,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:28:09,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:28:09,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:28:09,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:28:09,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:28:09,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:28:09,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:28:09,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:28:09,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:28:09,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:28:09,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:28:09,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:28:09,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:28:09,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:28:09,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:28:09,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:28:09,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:28:09,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:28:09,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:28:09,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:28:09,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:28:09,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:28:09,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:28:09,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:28:09,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:28:09,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:28:09,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:28:09,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:28:09,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:28:09,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:28:09,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:28:09,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:28:09,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:28:09,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:28:09,177 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:28:09,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:28:09,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:28:09,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:28:09,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:28:09,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:28:09,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:28:09,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:28:09,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:28:09,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:28:09,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:28:09,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:28:09,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:28:09,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:28:09,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:28:09,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:28:09,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:28:09,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:28:09,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:28:09,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:28:09,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:28:09,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:28:09,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:28:09,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:28:09,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:28:09,185 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 -> ffa3d69a9c865824f83c880e63b98070c1187437 [2020-07-28 21:28:09,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:28:09,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:28:09,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:28:09,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:28:09,509 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:28:09,510 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe003_tso.oepc.i [2020-07-28 21:28:09,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42601549b/8872c6c89db4411f935c59ca83dd2ea5/FLAG8096f40d3 [2020-07-28 21:28:10,029 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:28:10,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe003_tso.oepc.i [2020-07-28 21:28:10,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42601549b/8872c6c89db4411f935c59ca83dd2ea5/FLAG8096f40d3 [2020-07-28 21:28:10,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42601549b/8872c6c89db4411f935c59ca83dd2ea5 [2020-07-28 21:28:10,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:28:10,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:28:10,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:28:10,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:28:10,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:28:10,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:10,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f18c888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10, skipping insertion in model container [2020-07-28 21:28:10,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:10,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:28:10,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:28:10,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:28:10,835 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:28:10,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:28:10,957 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:28:10,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10 WrapperNode [2020-07-28 21:28:10,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:28:10,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:28:10,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:28:10,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:28:10,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:10,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:28:11,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:28:11,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:28:11,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:28:11,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (1/1) ... [2020-07-28 21:28:11,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:28:11,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:28:11,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:28:11,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:28:11,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (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 21:28:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:28:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:28:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:28:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:28:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:28:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:28:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:28:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:28:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:28:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:28:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:28:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:28:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:28:11,127 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-07-28 21:28:11,662 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:28:11,663 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:28:11,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:28:11 BoogieIcfgContainer [2020-07-28 21:28:11,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:28:11,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:28:11,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:28:11,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:28:11,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:28:10" (1/3) ... [2020-07-28 21:28:11,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9d6df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:28:11, skipping insertion in model container [2020-07-28 21:28:11,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:28:10" (2/3) ... [2020-07-28 21:28:11,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9d6df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:28:11, skipping insertion in model container [2020-07-28 21:28:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:28:11" (3/3) ... [2020-07-28 21:28:11,679 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-07-28 21:28:11,689 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:28:11,690 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:28:11,697 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:28:11,698 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:28:11,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,732 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,732 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,733 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,740 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,740 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,740 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,741 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,748 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:28:11,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:28:11,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:28:11,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:28:11,788 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:28:11,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:28:11,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:28:11,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:28:11,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:28:11,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:28:11,804 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:28:11,807 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:28:11,852 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:28:11,852 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:28:11,857 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 46 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 21:28:11,860 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:28:11,882 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:28:11,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:28:11,884 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 46 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 21:28:11,886 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:28:11,887 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:28:14,129 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-07-28 21:28:14,412 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-07-28 21:28:14,412 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-07-28 21:28:14,417 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:28:14,461 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:28:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:28:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:28:14,492 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:14,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:14,493 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:14,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-07-28 21:28:14,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:14,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491978942] [2020-07-28 21:28:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:14,738 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {679#(= 0 ~y~0)} is VALID [2020-07-28 21:28:14,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(= 0 ~y~0)} [165] L768-->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 ~y~0)} is VALID [2020-07-28 21:28:14,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(= 0 ~y~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {679#(= 0 ~y~0)} is VALID [2020-07-28 21:28:14,741 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(= 0 ~y~0)} [167] L770-->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 ~y~0)} is VALID [2020-07-28 21:28:14,742 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(= 0 ~y~0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {679#(= 0 ~y~0)} is VALID [2020-07-28 21:28:14,743 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(= 0 ~y~0)} [169] L772-->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 ~y~0)} is VALID [2020-07-28 21:28:14,744 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(= 0 ~y~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(= 0 ~y~0)} is VALID [2020-07-28 21:28:14,746 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(= 0 ~y~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, 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 21:28:14,747 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 21:28:14,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491978942] [2020-07-28 21:28:14,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:14,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:28:14,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839146121] [2020-07-28 21:28:14,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:28:14,757 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:14,761 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:28:14,782 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 21:28:14,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:28:14,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:14,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:28:14,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:28:14,796 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:28:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:14,934 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-07-28 21:28:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:28:14,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:28:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:14,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-28 21:28:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-07-28 21:28:14,940 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 33 transitions. [2020-07-28 21:28:14,985 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:15,011 INFO L225 Difference]: With dead ends: 290 [2020-07-28 21:28:15,012 INFO L226 Difference]: Without dead ends: 226 [2020-07-28 21:28:15,013 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 21:28:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-28 21:28:15,060 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,062 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,063 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,064 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,065 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,066 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,067 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,068 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,069 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,070 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,071 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,072 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,073 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,074 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,075 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,076 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,077 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,078 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,079 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,080 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,081 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,082 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,083 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,084 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,086 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-07-28 21:28:15,134 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:15,134 INFO L82 GeneralOperation]: Start isEquivalent. First operand 226 states. Second operand 226 states. [2020-07-28 21:28:15,135 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:28:15,135 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:28:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,159 INFO L93 Difference]: Finished difference Result 226 states and 626 transitions. [2020-07-28 21:28:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-07-28 21:28:15,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,163 INFO L74 IsIncluded]: Start isIncluded. First operand 226 states. Second operand 226 states. [2020-07-28 21:28:15,163 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 226 states. [2020-07-28 21:28:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,185 INFO L93 Difference]: Finished difference Result 226 states and 626 transitions. [2020-07-28 21:28:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-07-28 21:28:15,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,187 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,188 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:15,188 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:15,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-28 21:28:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-07-28 21:28:15,208 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-07-28 21:28:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:15,208 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-07-28 21:28:15,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:28:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-07-28 21:28:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:28:15,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:15,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:15,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:28:15,211 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:15,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-07-28 21:28:15,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:15,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326030723] [2020-07-28 21:28:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:15,318 INFO L280 TraceCheckUtils]: 0: Hoare triple {1876#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,321 INFO L280 TraceCheckUtils]: 1: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [165] L768-->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] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,324 INFO L280 TraceCheckUtils]: 2: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [177] P0ENTRY-->L715: Formula: (and (= 2 v_~y~0_14) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_14, 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] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,324 INFO L280 TraceCheckUtils]: 3: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,325 INFO L280 TraceCheckUtils]: 4: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [167] L770-->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] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,326 INFO L280 TraceCheckUtils]: 5: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,327 INFO L280 TraceCheckUtils]: 6: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [169] L772-->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] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,328 INFO L280 TraceCheckUtils]: 7: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1878#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:28:15,329 INFO L280 TraceCheckUtils]: 8: Hoare triple {1878#(<= ~__unbuffered_p2_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1877#false} is VALID [2020-07-28 21:28:15,330 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 21:28:15,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326030723] [2020-07-28 21:28:15,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:15,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:28:15,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529632015] [2020-07-28 21:28:15,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:28:15,333 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:15,333 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:28:15,345 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:15,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:28:15,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:15,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:28:15,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:28:15,346 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-07-28 21:28:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,393 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-07-28 21:28:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:28:15,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-07-28 21:28:15,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:15,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:28:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:28:15,395 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:28:15,426 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 21:28:15,432 INFO L225 Difference]: With dead ends: 212 [2020-07-28 21:28:15,433 INFO L226 Difference]: Without dead ends: 212 [2020-07-28 21:28:15,433 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 21:28:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-07-28 21:28:15,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-07-28 21:28:15,487 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:15,487 INFO L82 GeneralOperation]: Start isEquivalent. First operand 212 states. Second operand 212 states. [2020-07-28 21:28:15,487 INFO L74 IsIncluded]: Start isIncluded. First operand 212 states. Second operand 212 states. [2020-07-28 21:28:15,487 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 212 states. [2020-07-28 21:28:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,501 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-07-28 21:28:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-07-28 21:28:15,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,502 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,502 INFO L74 IsIncluded]: Start isIncluded. First operand 212 states. Second operand 212 states. [2020-07-28 21:28:15,503 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 212 states. [2020-07-28 21:28:15,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,517 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-07-28 21:28:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-07-28 21:28:15,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,518 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,518 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:15,518 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:15,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-07-28 21:28:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-07-28 21:28:15,531 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-07-28 21:28:15,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:15,531 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-07-28 21:28:15,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:28:15,532 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-07-28 21:28:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:28:15,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:15,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:15,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:28:15,533 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:15,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:15,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2042366299, now seen corresponding path program 1 times [2020-07-28 21:28:15,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:15,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312921370] [2020-07-28 21:28:15,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:15,598 INFO L280 TraceCheckUtils]: 0: Hoare triple {2941#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {2941#true} is VALID [2020-07-28 21:28:15,599 INFO L280 TraceCheckUtils]: 1: Hoare triple {2941#true} [165] L768-->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] {2941#true} is VALID [2020-07-28 21:28:15,599 INFO L280 TraceCheckUtils]: 2: Hoare triple {2941#true} [177] P0ENTRY-->L715: Formula: (and (= 2 v_~y~0_14) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_14, 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] {2943#(<= 2 ~y~0)} is VALID [2020-07-28 21:28:15,600 INFO L280 TraceCheckUtils]: 3: Hoare triple {2943#(<= 2 ~y~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {2943#(<= 2 ~y~0)} is VALID [2020-07-28 21:28:15,601 INFO L280 TraceCheckUtils]: 4: Hoare triple {2943#(<= 2 ~y~0)} [167] L770-->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] {2943#(<= 2 ~y~0)} is VALID [2020-07-28 21:28:15,602 INFO L280 TraceCheckUtils]: 5: Hoare triple {2943#(<= 2 ~y~0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {2943#(<= 2 ~y~0)} is VALID [2020-07-28 21:28:15,602 INFO L280 TraceCheckUtils]: 6: Hoare triple {2943#(<= 2 ~y~0)} [169] L772-->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] {2943#(<= 2 ~y~0)} is VALID [2020-07-28 21:28:15,603 INFO L280 TraceCheckUtils]: 7: Hoare triple {2943#(<= 2 ~y~0)} [194] P2ENTRY-->L745: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_27 v_~__unbuffered_p2_EAX~0_21)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_21, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2944#(<= 2 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:28:15,604 INFO L280 TraceCheckUtils]: 8: Hoare triple {2944#(<= 2 ~__unbuffered_p2_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2944#(<= 2 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:28:15,605 INFO L280 TraceCheckUtils]: 9: Hoare triple {2944#(<= 2 ~__unbuffered_p2_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, 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] {2942#false} is VALID [2020-07-28 21:28:15,605 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 21:28:15,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312921370] [2020-07-28 21:28:15,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:15,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:28:15,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583908250] [2020-07-28 21:28:15,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:28:15,607 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:15,607 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:28:15,623 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 21:28:15,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:28:15,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:28:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:28:15,624 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-07-28 21:28:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,751 INFO L93 Difference]: Finished difference Result 398 states and 1041 transitions. [2020-07-28 21:28:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:28:15,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:28:15,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:28:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-07-28 21:28:15,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 48 transitions. [2020-07-28 21:28:15,808 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:15,816 INFO L225 Difference]: With dead ends: 398 [2020-07-28 21:28:15,816 INFO L226 Difference]: Without dead ends: 266 [2020-07-28 21:28:15,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:28:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-28 21:28:15,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,843 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,844 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,869 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:15,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 212. [2020-07-28 21:28:15,878 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:15,878 INFO L82 GeneralOperation]: Start isEquivalent. First operand 266 states. Second operand 212 states. [2020-07-28 21:28:15,878 INFO L74 IsIncluded]: Start isIncluded. First operand 266 states. Second operand 212 states. [2020-07-28 21:28:15,879 INFO L87 Difference]: Start difference. First operand 266 states. Second operand 212 states. [2020-07-28 21:28:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,896 INFO L93 Difference]: Finished difference Result 266 states and 693 transitions. [2020-07-28 21:28:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 693 transitions. [2020-07-28 21:28:15,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,898 INFO L74 IsIncluded]: Start isIncluded. First operand 212 states. Second operand 266 states. [2020-07-28 21:28:15,898 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 266 states. [2020-07-28 21:28:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:15,923 INFO L93 Difference]: Finished difference Result 266 states and 693 transitions. [2020-07-28 21:28:15,923 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 693 transitions. [2020-07-28 21:28:15,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:15,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:15,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:15,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-07-28 21:28:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 558 transitions. [2020-07-28 21:28:15,950 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 558 transitions. Word has length 10 [2020-07-28 21:28:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:15,951 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 558 transitions. [2020-07-28 21:28:15,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:28:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 558 transitions. [2020-07-28 21:28:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:28:15,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:15,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:15,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:28:15,953 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1613599897, now seen corresponding path program 2 times [2020-07-28 21:28:15,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:15,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483732315] [2020-07-28 21:28:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:16,041 INFO L280 TraceCheckUtils]: 0: Hoare triple {4303#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,043 INFO L280 TraceCheckUtils]: 1: Hoare triple {4305#(= 0 ~y~0)} [165] L768-->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] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,044 INFO L280 TraceCheckUtils]: 2: Hoare triple {4305#(= 0 ~y~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,045 INFO L280 TraceCheckUtils]: 3: Hoare triple {4305#(= 0 ~y~0)} [167] L770-->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] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,045 INFO L280 TraceCheckUtils]: 4: Hoare triple {4305#(= 0 ~y~0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,046 INFO L280 TraceCheckUtils]: 5: Hoare triple {4305#(= 0 ~y~0)} [169] L772-->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] {4305#(= 0 ~y~0)} is VALID [2020-07-28 21:28:16,047 INFO L280 TraceCheckUtils]: 6: Hoare triple {4305#(= 0 ~y~0)} [194] P2ENTRY-->L745: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_27 v_~__unbuffered_p2_EAX~0_21)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_21, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4306#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:28:16,048 INFO L280 TraceCheckUtils]: 7: Hoare triple {4306#(= 0 ~__unbuffered_p2_EAX~0)} [177] P0ENTRY-->L715: Formula: (and (= 2 v_~y~0_14) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_14, 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] {4306#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:28:16,049 INFO L280 TraceCheckUtils]: 8: Hoare triple {4306#(= 0 ~__unbuffered_p2_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4306#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:28:16,049 INFO L280 TraceCheckUtils]: 9: Hoare triple {4306#(= 0 ~__unbuffered_p2_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4304#false} is VALID [2020-07-28 21:28:16,050 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 21:28:16,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483732315] [2020-07-28 21:28:16,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:16,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:28:16,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880742177] [2020-07-28 21:28:16,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:28:16,051 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:16,051 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:28:16,071 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 21:28:16,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:28:16,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:16,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:28:16,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:28:16,072 INFO L87 Difference]: Start difference. First operand 212 states and 558 transitions. Second operand 4 states. [2020-07-28 21:28:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,156 INFO L93 Difference]: Finished difference Result 242 states and 614 transitions. [2020-07-28 21:28:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:28:16,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:28:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:28:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:28:16,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:28:16,201 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:16,205 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:28:16,205 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:28:16,205 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 21:28:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:28:16,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:28:16,251 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:16,251 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:28:16,251 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:28:16,251 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:28:16,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,257 INFO L93 Difference]: Finished difference Result 146 states and 354 transitions. [2020-07-28 21:28:16,257 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 354 transitions. [2020-07-28 21:28:16,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,258 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,258 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:28:16,258 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:28:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,263 INFO L93 Difference]: Finished difference Result 146 states and 354 transitions. [2020-07-28 21:28:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 354 transitions. [2020-07-28 21:28:16,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,264 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:16,265 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:28:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 354 transitions. [2020-07-28 21:28:16,270 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 354 transitions. Word has length 10 [2020-07-28 21:28:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:16,270 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 354 transitions. [2020-07-28 21:28:16,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:28:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 354 transitions. [2020-07-28 21:28:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:28:16,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:16,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:16,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:28:16,271 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-07-28 21:28:16,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:16,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112850076] [2020-07-28 21:28:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:16,316 INFO L280 TraceCheckUtils]: 0: Hoare triple {5137#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {5137#true} is VALID [2020-07-28 21:28:16,317 INFO L280 TraceCheckUtils]: 1: Hoare triple {5137#true} [165] L768-->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] {5137#true} is VALID [2020-07-28 21:28:16,317 INFO L280 TraceCheckUtils]: 2: Hoare triple {5137#true} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {5137#true} is VALID [2020-07-28 21:28:16,317 INFO L280 TraceCheckUtils]: 3: Hoare triple {5137#true} [167] L770-->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] {5137#true} is VALID [2020-07-28 21:28:16,318 INFO L280 TraceCheckUtils]: 4: Hoare triple {5137#true} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 v_~x~0_9) (= |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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {5137#true} is VALID [2020-07-28 21:28:16,318 INFO L280 TraceCheckUtils]: 5: Hoare triple {5137#true} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5137#true} is VALID [2020-07-28 21:28:16,319 INFO L280 TraceCheckUtils]: 6: Hoare triple {5137#true} [169] L772-->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] {5137#true} is VALID [2020-07-28 21:28:16,319 INFO L280 TraceCheckUtils]: 7: Hoare triple {5137#true} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5139#(= 1 ~y~0)} is VALID [2020-07-28 21:28:16,320 INFO L280 TraceCheckUtils]: 8: Hoare triple {5139#(= 1 ~y~0)} [194] P2ENTRY-->L745: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_27 v_~__unbuffered_p2_EAX~0_21)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_21, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5139#(= 1 ~y~0)} is VALID [2020-07-28 21:28:16,321 INFO L280 TraceCheckUtils]: 9: Hoare triple {5139#(= 1 ~y~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5139#(= 1 ~y~0)} is VALID [2020-07-28 21:28:16,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {5139#(= 1 ~y~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, 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] {5138#false} is VALID [2020-07-28 21:28:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:28:16,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112850076] [2020-07-28 21:28:16,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:16,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:28:16,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051188302] [2020-07-28 21:28:16,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:28:16,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:16,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:28:16,339 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 21:28:16,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:28:16,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:16,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:28:16,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:28:16,340 INFO L87 Difference]: Start difference. First operand 146 states and 354 transitions. Second operand 3 states. [2020-07-28 21:28:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,387 INFO L93 Difference]: Finished difference Result 176 states and 419 transitions. [2020-07-28 21:28:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:28:16,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:28:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:28:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:28:16,388 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:28:16,422 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 21:28:16,424 INFO L225 Difference]: With dead ends: 176 [2020-07-28 21:28:16,424 INFO L226 Difference]: Without dead ends: 86 [2020-07-28 21:28:16,424 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 21:28:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-28 21:28:16,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-07-28 21:28:16,448 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:16,448 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 86 states. [2020-07-28 21:28:16,448 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 86 states. [2020-07-28 21:28:16,448 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 86 states. [2020-07-28 21:28:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,451 INFO L93 Difference]: Finished difference Result 86 states and 199 transitions. [2020-07-28 21:28:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 199 transitions. [2020-07-28 21:28:16,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,452 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 86 states. [2020-07-28 21:28:16,452 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 86 states. [2020-07-28 21:28:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,455 INFO L93 Difference]: Finished difference Result 86 states and 199 transitions. [2020-07-28 21:28:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 199 transitions. [2020-07-28 21:28:16,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,456 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,456 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:16,456 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:16,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-07-28 21:28:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 199 transitions. [2020-07-28 21:28:16,459 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 199 transitions. Word has length 11 [2020-07-28 21:28:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:16,459 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 199 transitions. [2020-07-28 21:28:16,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:28:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 199 transitions. [2020-07-28 21:28:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:28:16,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:16,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:16,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:28:16,461 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:16,461 INFO L82 PathProgramCache]: Analyzing trace with hash -178751116, now seen corresponding path program 1 times [2020-07-28 21:28:16,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:16,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869709955] [2020-07-28 21:28:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:16,505 INFO L280 TraceCheckUtils]: 0: Hoare triple {5662#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,506 INFO L280 TraceCheckUtils]: 1: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [165] L768-->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] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,510 INFO L280 TraceCheckUtils]: 2: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,511 INFO L280 TraceCheckUtils]: 3: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [167] L770-->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] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,514 INFO L280 TraceCheckUtils]: 4: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 v_~x~0_9) (= |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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,515 INFO L280 TraceCheckUtils]: 5: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,516 INFO L280 TraceCheckUtils]: 6: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [169] L772-->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] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,517 INFO L280 TraceCheckUtils]: 7: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,518 INFO L280 TraceCheckUtils]: 8: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [194] P2ENTRY-->L745: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_27 v_~__unbuffered_p2_EAX~0_21)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_21, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,519 INFO L280 TraceCheckUtils]: 9: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [177] P0ENTRY-->L715: Formula: (and (= 2 v_~y~0_14) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_14, 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] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,519 INFO L280 TraceCheckUtils]: 10: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5664#(= 0 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:28:16,520 INFO L280 TraceCheckUtils]: 11: Hoare triple {5664#(= 0 ~__unbuffered_p2_EBX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5663#false} is VALID [2020-07-28 21:28:16,523 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 21:28:16,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869709955] [2020-07-28 21:28:16,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:16,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:28:16,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678867461] [2020-07-28 21:28:16,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-28 21:28:16,525 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:16,525 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:28:16,542 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 21:28:16,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:28:16,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:16,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:28:16,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:28:16,543 INFO L87 Difference]: Start difference. First operand 86 states and 199 transitions. Second operand 3 states. [2020-07-28 21:28:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,569 INFO L93 Difference]: Finished difference Result 80 states and 180 transitions. [2020-07-28 21:28:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:28:16,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-28 21:28:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:28:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:28:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-07-28 21:28:16,571 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2020-07-28 21:28:16,621 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:16,622 INFO L225 Difference]: With dead ends: 80 [2020-07-28 21:28:16,622 INFO L226 Difference]: Without dead ends: 80 [2020-07-28 21:28:16,623 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 21:28:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-28 21:28:16,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:28:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-28 21:28:16,640 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:16,640 INFO L82 GeneralOperation]: Start isEquivalent. First operand 80 states. Second operand 80 states. [2020-07-28 21:28:16,640 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:28:16,640 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:28:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,642 INFO L93 Difference]: Finished difference Result 80 states and 180 transitions. [2020-07-28 21:28:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 180 transitions. [2020-07-28 21:28:16,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,643 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,643 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 80 states. [2020-07-28 21:28:16,643 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 80 states. [2020-07-28 21:28:16,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,645 INFO L93 Difference]: Finished difference Result 80 states and 180 transitions. [2020-07-28 21:28:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 180 transitions. [2020-07-28 21:28:16,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,646 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:16,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-28 21:28:16,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 180 transitions. [2020-07-28 21:28:16,648 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 180 transitions. Word has length 12 [2020-07-28 21:28:16,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:16,648 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 180 transitions. [2020-07-28 21:28:16,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:28:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 180 transitions. [2020-07-28 21:28:16,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:28:16,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:28:16,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:28:16,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:28:16,650 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:28:16,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:28:16,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-07-28 21:28:16,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:28:16,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374997197] [2020-07-28 21:28:16,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:28:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:28:16,714 INFO L280 TraceCheckUtils]: 0: Hoare triple {6067#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1867~0.base_24|) |v_ULTIMATE.start_main_~#t1867~0.offset_17| 0)) |v_#memory_int_17|) (= v_~__unbuffered_cnt~0_131 0) (= v_~__unbuffered_p2_EBX~0_48 0) (= 0 v_~main$tmp_guard1~0_41) (= 0 v_~__unbuffered_p1_EAX~0_48) (= 0 v_~y~0_61) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1867~0.base_24| 4)) (= 0 |v_#NULL.base_6|) (= 0 |v_ULTIMATE.start_main_~#t1867~0.offset_17|) (= (store .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24| 1) |v_#valid_56|) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1867~0.base_24|) (= 0 |v_#NULL.offset_6|) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1867~0.base_24|)) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_19|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_14|, ULTIMATE.start_main_~#t1867~0.offset=|v_ULTIMATE.start_main_~#t1867~0.offset_17|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_22|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_16|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1867~0.base=|v_ULTIMATE.start_main_~#t1867~0.base_24|, ~y~0=v_~y~0_61, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_~#t1869~0.offset, ULTIMATE.start_main_~#t1867~0.offset, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ~main$tmp_guard1~0, ULTIMATE.start_main_~#t1868~0.base, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1868~0.offset, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1867~0.base, ~y~0, ~x~0] {6069#(<= ~x~0 0)} is VALID [2020-07-28 21:28:16,716 INFO L280 TraceCheckUtils]: 1: Hoare triple {6069#(<= ~x~0 0)} [165] L768-->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] {6069#(<= ~x~0 0)} is VALID [2020-07-28 21:28:16,717 INFO L280 TraceCheckUtils]: 2: Hoare triple {6069#(<= ~x~0 0)} [202] L768-1-->L770: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1868~0.base_9|) |v_ULTIMATE.start_main_~#t1868~0.offset_8| 1)) |v_#memory_int_13|) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1868~0.base_9|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1868~0.base_9| 4)) (= (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1868~0.base_9| 1) |v_#valid_33|) (= |v_ULTIMATE.start_main_~#t1868~0.offset_8| 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t1868~0.offset=|v_ULTIMATE.start_main_~#t1868~0.offset_8|, #StackHeapBarrier=|v_#StackHeapBarrier_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_15|, ULTIMATE.start_main_~#t1868~0.base=|v_ULTIMATE.start_main_~#t1868~0.base_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1868~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1868~0.base] {6069#(<= ~x~0 0)} is VALID [2020-07-28 21:28:16,718 INFO L280 TraceCheckUtils]: 3: Hoare triple {6069#(<= ~x~0 0)} [167] L770-->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] {6069#(<= ~x~0 0)} is VALID [2020-07-28 21:28:16,720 INFO L280 TraceCheckUtils]: 4: Hoare triple {6069#(<= ~x~0 0)} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 v_~x~0_9) (= |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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,721 INFO L280 TraceCheckUtils]: 5: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= |v_#valid_27| (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8| 1)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1869~0.base_8|) (not (= 0 |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_ULTIMATE.start_main_~#t1869~0.offset_8| 0) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1869~0.base_8|)) (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1869~0.base_8| 4)) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1869~0.base_8|) |v_ULTIMATE.start_main_~#t1869~0.offset_8| 2)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1869~0.base=|v_ULTIMATE.start_main_~#t1869~0.base_8|, ULTIMATE.start_main_~#t1869~0.offset=|v_ULTIMATE.start_main_~#t1869~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1869~0.base, ULTIMATE.start_main_~#t1869~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,721 INFO L280 TraceCheckUtils]: 6: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [169] L772-->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] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,722 INFO L280 TraceCheckUtils]: 7: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,723 INFO L280 TraceCheckUtils]: 8: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [194] P2ENTRY-->L745: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~y~0_27 v_~__unbuffered_p2_EAX~0_21)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_21, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_27} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,723 INFO L280 TraceCheckUtils]: 9: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [160] L745-->L748: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,724 INFO L280 TraceCheckUtils]: 10: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [177] P0ENTRY-->L715: Formula: (and (= 2 v_~y~0_14) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_14, 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] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,725 INFO L280 TraceCheckUtils]: 11: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {6070#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:28:16,726 INFO L280 TraceCheckUtils]: 12: Hoare triple {6070#(<= ~__unbuffered_p1_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= v_~__unbuffered_p2_EBX~0_47 1) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 1 v_~__unbuffered_p2_EAX~0_43) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 2 v_~y~0_60) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_47, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_60, 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] {6068#false} is VALID [2020-07-28 21:28:16,726 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 21:28:16,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374997197] [2020-07-28 21:28:16,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:28:16,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:28:16,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264452249] [2020-07-28 21:28:16,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:28:16,727 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:28:16,728 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:28:16,750 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:16,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:28:16,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:28:16,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:28:16,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:28:16,751 INFO L87 Difference]: Start difference. First operand 80 states and 180 transitions. Second operand 4 states. [2020-07-28 21:28:16,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,789 INFO L93 Difference]: Finished difference Result 68 states and 148 transitions. [2020-07-28 21:28:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:28:16,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:28:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:28:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:28:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:28:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:28:16,790 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 22 transitions. [2020-07-28 21:28:16,817 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:28:16,817 INFO L225 Difference]: With dead ends: 68 [2020-07-28 21:28:16,817 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:28:16,818 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 21:28:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:28:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:28:16,819 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:28:16,819 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:28:16,819 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:28:16,819 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:28:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,820 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:28:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:28:16,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,820 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,820 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:28:16,820 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:28:16,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:28:16,821 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:28:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:28:16,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:28:16,821 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:28:16,821 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:28:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:28:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:28:16,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-28 21:28:16,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:28:16,822 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:28:16,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:28:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:28:16,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:28:16,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:28:16,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:28:16 BasicIcfg [2020-07-28 21:28:16,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:28:16,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:28:16,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:28:16,828 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:28:16,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:28:11" (3/4) ... [2020-07-28 21:28:16,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:28:16,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:28:16,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:28:16,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:28:16,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:28:16,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:28:16,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:28:16,915 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:28:16,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:28:16,917 INFO L168 Benchmark]: Toolchain (without parser) took 6606.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 271.1 MB). Free memory was 948.2 MB in the beginning and 1.2 GB in the end (delta: -272.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:28:16,918 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 21:28:16,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.2 MB in the beginning and 1.1 GB in the end (delta: -108.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:28:16,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:28:16,921 INFO L168 Benchmark]: Boogie Preprocessor took 30.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:28:16,922 INFO L168 Benchmark]: RCFGBuilder took 622.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:28:16,925 INFO L168 Benchmark]: TraceAbstraction took 5157.25 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -195.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:28:16,925 INFO L168 Benchmark]: Witness Printer took 87.57 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:28:16,927 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 645.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.2 MB in the beginning and 1.1 GB in the end (delta: -108.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 622.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5157.25 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -195.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 87.57 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 133 SDtfs, 84 SDslu, 98 SDs, 0 SdLazy, 45 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1744 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...