./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 073fa8017bffc5499c038106491c2d6d05ba114e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:33:06,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:33:06,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:33:06,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:33:06,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:33:06,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:33:06,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:33:06,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:33:06,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:33:06,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:33:06,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:33:06,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:33:06,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:33:06,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:33:06,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:33:06,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:33:06,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:33:06,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:33:06,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:33:06,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:33:06,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:33:06,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:33:06,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:33:06,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:33:06,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:33:06,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:33:06,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:33:06,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:33:06,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:33:06,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:33:06,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:33:06,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:33:06,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:33:06,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:33:06,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:33:06,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:33:06,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:33:06,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:33:06,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:33:06,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:33:06,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:33:06,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:33:06,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:33:06,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:33:06,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:33:06,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:33:06,915 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:33:06,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:33:06,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:33:06,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:33:06,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:33:06,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:33:06,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:33:06,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:33:06,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:33:06,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:33:06,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:33:06,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:33:06,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:33:06,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:33:06,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:33:06,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:33:06,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:33:06,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:33:06,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:33:06,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:33:06,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:33:06,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:33:06,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:33:06,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:33:06,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:33:06,927 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 -> 073fa8017bffc5499c038106491c2d6d05ba114e [2020-07-28 21:33:07,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:33:07,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:33:07,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:33:07,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:33:07,291 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:33:07,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2020-07-28 21:33:07,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382441549/3c63574af8ef43529dcc495fccece54a/FLAGcb308065c [2020-07-28 21:33:07,811 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:33:07,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2020-07-28 21:33:07,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382441549/3c63574af8ef43529dcc495fccece54a/FLAGcb308065c [2020-07-28 21:33:08,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382441549/3c63574af8ef43529dcc495fccece54a [2020-07-28 21:33:08,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:33:08,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:33:08,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:33:08,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:33:08,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:33:08,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08, skipping insertion in model container [2020-07-28 21:33:08,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:33:08,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:33:08,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:33:08,690 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:33:08,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:33:08,832 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:33:08,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08 WrapperNode [2020-07-28 21:33:08,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:33:08,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:33:08,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:33:08,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:33:08,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:33:08,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:33:08,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:33:08,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:33:08,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (1/1) ... [2020-07-28 21:33:08,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:33:08,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:33:08,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:33:08,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:33:08,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (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 21:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:33:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:33:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:33:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:33:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:33:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:33:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:33:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:33:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:33:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:33:09,004 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 21:33:09,459 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:33:09,460 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:33:09,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:33:09 BoogieIcfgContainer [2020-07-28 21:33:09,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:33:09,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:33:09,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:33:09,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:33:09,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:33:08" (1/3) ... [2020-07-28 21:33:09,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564c58d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:33:09, skipping insertion in model container [2020-07-28 21:33:09,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:33:08" (2/3) ... [2020-07-28 21:33:09,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564c58d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:33:09, skipping insertion in model container [2020-07-28 21:33:09,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:33:09" (3/3) ... [2020-07-28 21:33:09,473 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-07-28 21:33:09,483 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:33:09,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:33:09,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:33:09,490 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:33:09,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,547 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:33:09,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:33:09,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:33:09,586 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:33:09,586 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:33:09,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:33:09,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:33:09,587 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:33:09,587 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:33:09,587 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:33:09,601 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:33:09,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:33:09,645 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:33:09,645 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:33:09,650 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:33:09,656 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:33:09,698 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:33:09,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:33:09,699 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:33:09,704 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:33:09,707 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:33:12,199 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287 [2020-07-28 21:33:12,200 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-07-28 21:33:12,203 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-07-28 21:33:12,228 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:33:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:33:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:33:12,238 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:12,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:12,239 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:12,245 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-07-28 21:33:12,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:12,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043803822] [2020-07-28 21:33:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:12,472 INFO L280 TraceCheckUtils]: 0: Hoare triple {676#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,473 INFO L280 TraceCheckUtils]: 1: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [163] L766-->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] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,474 INFO L280 TraceCheckUtils]: 2: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,475 INFO L280 TraceCheckUtils]: 3: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [165] L768-->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] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,476 INFO L280 TraceCheckUtils]: 4: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,477 INFO L280 TraceCheckUtils]: 5: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [167] L770-->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] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,477 INFO L280 TraceCheckUtils]: 6: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {678#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:33:12,479 INFO L280 TraceCheckUtils]: 7: Hoare triple {678#(<= ~__unbuffered_p2_EAX~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, 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] {677#false} is VALID [2020-07-28 21:33:12,481 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 21:33:12,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043803822] [2020-07-28 21:33:12,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:12,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:33:12,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832045903] [2020-07-28 21:33:12,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:33:12,491 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:12,495 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:33:12,511 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 21:33:12,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:33:12,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:12,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:33:12,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:33:12,525 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:33:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:12,643 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:33:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:33:12,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:33:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:33:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:33:12,648 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:33:12,687 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 21:33:12,711 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:33:12,711 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:33:12,713 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 21:33:12,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:33:12,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,793 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,794 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,795 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,796 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,797 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,798 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,799 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,800 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,801 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,802 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,803 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,804 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,805 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,806 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,807 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,808 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,809 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,810 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,811 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,812 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,823 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,824 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,825 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,826 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,827 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:33:12,829 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:12,830 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:33:12,830 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:33:12,831 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:33:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:12,850 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:33:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:33:12,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:12,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:12,853 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:33:12,853 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:33:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:12,872 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:33:12,872 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:33:12,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:12,875 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:12,875 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:12,875 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:12,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:33:12,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:33:12,892 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:33:12,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:12,893 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:33:12,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:33:12,893 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:33:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:33:12,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:12,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:12,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:33:12,895 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash 586925587, now seen corresponding path program 1 times [2020-07-28 21:33:12,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:12,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034396174] [2020-07-28 21:33:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:13,000 INFO L280 TraceCheckUtils]: 0: Hoare triple {1835#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,001 INFO L280 TraceCheckUtils]: 1: Hoare triple {1837#(= 0 ~y~0)} [163] L766-->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] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,002 INFO L280 TraceCheckUtils]: 2: Hoare triple {1837#(= 0 ~y~0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,003 INFO L280 TraceCheckUtils]: 3: Hoare triple {1837#(= 0 ~y~0)} [165] L768-->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] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,003 INFO L280 TraceCheckUtils]: 4: Hoare triple {1837#(= 0 ~y~0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,004 INFO L280 TraceCheckUtils]: 5: Hoare triple {1837#(= 0 ~y~0)} [167] L770-->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] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,005 INFO L280 TraceCheckUtils]: 6: Hoare triple {1837#(= 0 ~y~0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1837#(= 0 ~y~0)} is VALID [2020-07-28 21:33:13,006 INFO L280 TraceCheckUtils]: 7: Hoare triple {1837#(= 0 ~y~0)} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1838#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:33:13,007 INFO L280 TraceCheckUtils]: 8: Hoare triple {1838#(= 0 ~__unbuffered_p2_EAX~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1836#false} is VALID [2020-07-28 21:33:13,008 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 21:33:13,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034396174] [2020-07-28 21:33:13,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:13,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:33:13,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104903208] [2020-07-28 21:33:13,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:33:13,011 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:13,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:33:13,024 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 21:33:13,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:33:13,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:13,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:33:13,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:33:13,025 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:33:13,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,103 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-07-28 21:33:13,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:33:13,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:33:13,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:33:13,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:33:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:33:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-07-28 21:33:13,106 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 35 transitions. [2020-07-28 21:33:13,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:13,154 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:33:13,154 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:33:13,155 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 21:33:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:33:13,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,161 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,162 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,163 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,164 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,165 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,166 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,167 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,168 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,169 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,170 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,171 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,172 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,173 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,174 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,175 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,176 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,177 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,178 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,179 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,180 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,181 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,182 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,183 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:33:13,201 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:13,202 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:33:13,202 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:33:13,202 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:33:13,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,209 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:33:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:33:13,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,210 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:33:13,211 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:33:13,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,218 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:33:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:33:13,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,219 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:13,220 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:33:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-07-28 21:33:13,227 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-07-28 21:33:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:13,228 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-07-28 21:33:13,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:33:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:33:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:33:13,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:13,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:13,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:33:13,229 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:13,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:13,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1242480203, now seen corresponding path program 1 times [2020-07-28 21:33:13,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:13,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269727237] [2020-07-28 21:33:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:13,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {2669#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {2671#(<= ~z~0 0)} [163] L766-->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] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,293 INFO L280 TraceCheckUtils]: 2: Hoare triple {2671#(<= ~z~0 0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,294 INFO L280 TraceCheckUtils]: 3: Hoare triple {2671#(<= ~z~0 0)} [165] L768-->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] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,295 INFO L280 TraceCheckUtils]: 4: Hoare triple {2671#(<= ~z~0 0)} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,295 INFO L280 TraceCheckUtils]: 5: Hoare triple {2671#(<= ~z~0 0)} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,296 INFO L280 TraceCheckUtils]: 6: Hoare triple {2671#(<= ~z~0 0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,297 INFO L280 TraceCheckUtils]: 7: Hoare triple {2671#(<= ~z~0 0)} [167] L770-->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] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,297 INFO L280 TraceCheckUtils]: 8: Hoare triple {2671#(<= ~z~0 0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,298 INFO L280 TraceCheckUtils]: 9: Hoare triple {2671#(<= ~z~0 0)} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2671#(<= ~z~0 0)} is VALID [2020-07-28 21:33:13,299 INFO L280 TraceCheckUtils]: 10: Hoare triple {2671#(<= ~z~0 0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, 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] {2670#false} is VALID [2020-07-28 21:33:13,300 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 21:33:13,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269727237] [2020-07-28 21:33:13,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:13,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:33:13,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389029258] [2020-07-28 21:33:13,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:33:13,302 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:13,302 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:33:13,316 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 21:33:13,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:33:13,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:13,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:33:13,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:33:13,317 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-07-28 21:33:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,350 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:33:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:33:13,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:33:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:13,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:33:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:33:13,353 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:33:13,385 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:13,388 INFO L225 Difference]: With dead ends: 144 [2020-07-28 21:33:13,388 INFO L226 Difference]: Without dead ends: 144 [2020-07-28 21:33:13,388 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 21:33:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-07-28 21:33:13,393 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,394 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,395 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,396 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,397 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,398 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,399 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,400 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,401 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,402 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,403 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,404 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,405 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,406 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,407 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,408 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,409 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,410 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,411 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,412 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,413 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,414 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,415 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-07-28 21:33:13,422 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:13,422 INFO L82 GeneralOperation]: Start isEquivalent. First operand 144 states. Second operand 144 states. [2020-07-28 21:33:13,422 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states. Second operand 144 states. [2020-07-28 21:33:13,422 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 144 states. [2020-07-28 21:33:13,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,429 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:33:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:33:13,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,430 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,430 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states. Second operand 144 states. [2020-07-28 21:33:13,430 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 144 states. [2020-07-28 21:33:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,437 INFO L93 Difference]: Finished difference Result 144 states and 355 transitions. [2020-07-28 21:33:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:33:13,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,438 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:13,438 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-07-28 21:33:13,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-07-28 21:33:13,445 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11 [2020-07-28 21:33:13,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:13,445 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-07-28 21:33:13,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:33:13,445 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-07-28 21:33:13,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:33:13,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:13,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:13,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:33:13,446 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:13,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:13,447 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-07-28 21:33:13,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:13,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519547124] [2020-07-28 21:33:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:13,527 INFO L280 TraceCheckUtils]: 0: Hoare triple {3394#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,528 INFO L280 TraceCheckUtils]: 1: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [163] L766-->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] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,529 INFO L280 TraceCheckUtils]: 2: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [192] P0ENTRY-->L713: Formula: (and (= 2 v_~z~0_11) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_11, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,530 INFO L280 TraceCheckUtils]: 3: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,530 INFO L280 TraceCheckUtils]: 4: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [165] L768-->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] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,531 INFO L280 TraceCheckUtils]: 5: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,532 INFO L280 TraceCheckUtils]: 6: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,532 INFO L280 TraceCheckUtils]: 7: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,533 INFO L280 TraceCheckUtils]: 8: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [167] L770-->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] {3396#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,534 INFO L280 TraceCheckUtils]: 9: Hoare triple {3396#(<= ~__unbuffered_cnt~0 0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3397#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:33:13,535 INFO L280 TraceCheckUtils]: 10: Hoare triple {3397#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3397#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:33:13,536 INFO L280 TraceCheckUtils]: 11: Hoare triple {3397#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3395#false} is VALID [2020-07-28 21:33:13,538 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 21:33:13,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519547124] [2020-07-28 21:33:13,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:13,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:33:13,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309560207] [2020-07-28 21:33:13,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:33:13,539 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:13,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:33:13,555 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 21:33:13,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:33:13,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:13,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:33:13,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:33:13,556 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-07-28 21:33:13,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,679 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-07-28 21:33:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:33:13,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:33:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:33:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:33:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:33:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2020-07-28 21:33:13,682 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2020-07-28 21:33:13,746 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:13,749 INFO L225 Difference]: With dead ends: 164 [2020-07-28 21:33:13,749 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:33:13,749 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 21:33:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:33:13,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,756 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,757 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,758 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,759 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,760 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,761 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,762 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,763 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,764 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,765 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,766 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,767 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,768 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,769 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,770 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,771 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,772 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,773 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,774 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,775 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,776 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,777 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,778 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,779 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,780 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,781 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,782 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,783 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,784 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,785 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,786 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,787 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,788 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,789 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,790 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,791 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,792 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:13,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-28 21:33:13,792 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:13,792 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 124 states. [2020-07-28 21:33:13,793 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:33:13,793 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:33:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,799 INFO L93 Difference]: Finished difference Result 124 states and 281 transitions. [2020-07-28 21:33:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:33:13,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,800 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:33:13,800 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:33:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:13,806 INFO L93 Difference]: Finished difference Result 124 states and 281 transitions. [2020-07-28 21:33:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:33:13,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:13,807 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:13,807 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:13,807 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-28 21:33:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-07-28 21:33:13,813 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-07-28 21:33:13,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:13,813 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-07-28 21:33:13,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:33:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-07-28 21:33:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:33:13,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:13,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:13,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:33:13,815 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:13,816 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-07-28 21:33:13,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:13,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813394523] [2020-07-28 21:33:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:13,894 INFO L280 TraceCheckUtils]: 0: Hoare triple {4062#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,895 INFO L280 TraceCheckUtils]: 1: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [163] L766-->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] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,896 INFO L280 TraceCheckUtils]: 2: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [192] P0ENTRY-->L713: Formula: (and (= 2 v_~z~0_11) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_11, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,897 INFO L280 TraceCheckUtils]: 3: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,898 INFO L280 TraceCheckUtils]: 4: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [165] L768-->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] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,899 INFO L280 TraceCheckUtils]: 5: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,899 INFO L280 TraceCheckUtils]: 6: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,900 INFO L280 TraceCheckUtils]: 7: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,901 INFO L280 TraceCheckUtils]: 8: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [167] L770-->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] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,902 INFO L280 TraceCheckUtils]: 9: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4064#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:13,903 INFO L280 TraceCheckUtils]: 10: Hoare triple {4064#(<= ~__unbuffered_cnt~0 0)} [205] L731-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4065#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:33:13,904 INFO L280 TraceCheckUtils]: 11: Hoare triple {4065#(<= ~__unbuffered_cnt~0 1)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4066#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:33:13,906 INFO L280 TraceCheckUtils]: 12: Hoare triple {4066#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, 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] {4063#false} is VALID [2020-07-28 21:33:13,907 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 21:33:13,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813394523] [2020-07-28 21:33:13,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:13,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:33:13,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338450105] [2020-07-28 21:33:13,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:33:13,908 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:13,909 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:33:13,951 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 21:33:13,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:33:13,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:13,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:33:13,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:33:13,952 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-07-28 21:33:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,112 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-07-28 21:33:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:33:14,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:33:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:33:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:33:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:33:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2020-07-28 21:33:14,116 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 58 transitions. [2020-07-28 21:33:14,189 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,191 INFO L225 Difference]: With dead ends: 122 [2020-07-28 21:33:14,191 INFO L226 Difference]: Without dead ends: 97 [2020-07-28 21:33:14,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:33:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-07-28 21:33:14,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,197 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,198 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,199 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,200 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,201 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,202 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,211 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,212 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,213 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,214 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,215 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,216 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,217 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,218 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,219 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,221 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-07-28 21:33:14,223 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:14,223 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 97 states. [2020-07-28 21:33:14,223 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:33:14,223 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:33:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,227 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:33:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:33:14,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,229 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-28 21:33:14,229 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-28 21:33:14,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,233 INFO L93 Difference]: Finished difference Result 97 states and 202 transitions. [2020-07-28 21:33:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:33:14,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,234 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,234 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:14,234 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-28 21:33:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-07-28 21:33:14,238 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-07-28 21:33:14,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:14,239 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-07-28 21:33:14,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:33:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-07-28 21:33:14,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:33:14,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:14,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:14,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:33:14,240 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:14,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-07-28 21:33:14,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:14,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885388207] [2020-07-28 21:33:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:14,315 INFO L280 TraceCheckUtils]: 0: Hoare triple {4581#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {4581#true} is VALID [2020-07-28 21:33:14,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {4581#true} [163] L766-->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] {4581#true} is VALID [2020-07-28 21:33:14,316 INFO L280 TraceCheckUtils]: 2: Hoare triple {4581#true} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {4581#true} is VALID [2020-07-28 21:33:14,316 INFO L280 TraceCheckUtils]: 3: Hoare triple {4581#true} [165] L768-->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] {4581#true} is VALID [2020-07-28 21:33:14,318 INFO L280 TraceCheckUtils]: 4: Hoare triple {4581#true} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {4581#true} is VALID [2020-07-28 21:33:14,318 INFO L280 TraceCheckUtils]: 5: Hoare triple {4581#true} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {4581#true} is VALID [2020-07-28 21:33:14,318 INFO L280 TraceCheckUtils]: 6: Hoare triple {4581#true} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {4581#true} is VALID [2020-07-28 21:33:14,319 INFO L280 TraceCheckUtils]: 7: Hoare triple {4581#true} [167] L770-->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] {4581#true} is VALID [2020-07-28 21:33:14,319 INFO L280 TraceCheckUtils]: 8: Hoare triple {4581#true} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4581#true} is VALID [2020-07-28 21:33:14,321 INFO L280 TraceCheckUtils]: 9: Hoare triple {4581#true} [205] L731-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {4581#true} is VALID [2020-07-28 21:33:14,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {4581#true} [158] L743-->L746: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {4583#(= 1 ~z~0)} is VALID [2020-07-28 21:33:14,323 INFO L280 TraceCheckUtils]: 11: Hoare triple {4583#(= 1 ~z~0)} [195] L746-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_52 1) v_~__unbuffered_cnt~0_51) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_52} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_51, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {4583#(= 1 ~z~0)} is VALID [2020-07-28 21:33:14,323 INFO L280 TraceCheckUtils]: 12: Hoare triple {4583#(= 1 ~z~0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4583#(= 1 ~z~0)} is VALID [2020-07-28 21:33:14,324 INFO L280 TraceCheckUtils]: 13: Hoare triple {4583#(= 1 ~z~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4582#false} is VALID [2020-07-28 21:33:14,324 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 21:33:14,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885388207] [2020-07-28 21:33:14,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:14,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:33:14,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631598119] [2020-07-28 21:33:14,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:33:14,326 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:14,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:33:14,344 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:33:14,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:14,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:33:14,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:33:14,345 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-07-28 21:33:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,382 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-07-28 21:33:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:33:14,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-07-28 21:33:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-28 21:33:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2020-07-28 21:33:14,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 24 transitions. [2020-07-28 21:33:14,410 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,412 INFO L225 Difference]: With dead ends: 115 [2020-07-28 21:33:14,412 INFO L226 Difference]: Without dead ends: 98 [2020-07-28 21:33:14,412 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 21:33:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-28 21:33:14,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,416 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,417 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,418 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,419 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,420 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,421 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,422 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,423 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,424 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,425 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,426 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-07-28 21:33:14,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:14,436 INFO L82 GeneralOperation]: Start isEquivalent. First operand 98 states. Second operand 96 states. [2020-07-28 21:33:14,436 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 96 states. [2020-07-28 21:33:14,436 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 96 states. [2020-07-28 21:33:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,438 INFO L93 Difference]: Finished difference Result 98 states and 194 transitions. [2020-07-28 21:33:14,439 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 194 transitions. [2020-07-28 21:33:14,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,439 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,439 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 98 states. [2020-07-28 21:33:14,439 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 98 states. [2020-07-28 21:33:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,442 INFO L93 Difference]: Finished difference Result 98 states and 194 transitions. [2020-07-28 21:33:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 194 transitions. [2020-07-28 21:33:14,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,442 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,443 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:14,443 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:14,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-28 21:33:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-07-28 21:33:14,446 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-07-28 21:33:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:14,446 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-07-28 21:33:14,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:33:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-07-28 21:33:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 21:33:14,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:14,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:14,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:33:14,448 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:14,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-07-28 21:33:14,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:14,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054598136] [2020-07-28 21:33:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:14,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {5089#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,558 INFO L280 TraceCheckUtils]: 1: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [163] L766-->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] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,559 INFO L280 TraceCheckUtils]: 2: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [192] P0ENTRY-->L713: Formula: (and (= 2 v_~z~0_11) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_11, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,560 INFO L280 TraceCheckUtils]: 3: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [146] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,561 INFO L280 TraceCheckUtils]: 4: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,561 INFO L280 TraceCheckUtils]: 5: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [165] L768-->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] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,562 INFO L280 TraceCheckUtils]: 6: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,563 INFO L280 TraceCheckUtils]: 7: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,563 INFO L280 TraceCheckUtils]: 8: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,564 INFO L280 TraceCheckUtils]: 9: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [167] L770-->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] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,565 INFO L280 TraceCheckUtils]: 10: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5091#(<= ~__unbuffered_cnt~0 0)} is VALID [2020-07-28 21:33:14,566 INFO L280 TraceCheckUtils]: 11: Hoare triple {5091#(<= ~__unbuffered_cnt~0 0)} [205] L731-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5092#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:33:14,567 INFO L280 TraceCheckUtils]: 12: Hoare triple {5092#(<= ~__unbuffered_cnt~0 1)} [207] L716-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_86 (+ v_~__unbuffered_cnt~0_87 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5093#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:33:14,568 INFO L280 TraceCheckUtils]: 13: Hoare triple {5093#(<= ~__unbuffered_cnt~0 2)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5094#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:33:14,569 INFO L280 TraceCheckUtils]: 14: Hoare triple {5094#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, 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] {5090#false} is VALID [2020-07-28 21:33:14,570 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 21:33:14,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054598136] [2020-07-28 21:33:14,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:14,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:33:14,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858593805] [2020-07-28 21:33:14,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:33:14,571 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:14,572 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:33:14,589 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:33:14,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:14,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:33:14,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:33:14,590 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-07-28 21:33:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,747 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-07-28 21:33:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:33:14,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-28 21:33:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:33:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:33:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:33:14,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:33:14,752 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2020-07-28 21:33:14,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,810 INFO L225 Difference]: With dead ends: 92 [2020-07-28 21:33:14,810 INFO L226 Difference]: Without dead ends: 36 [2020-07-28 21:33:14,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:33:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-28 21:33:14,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,813 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,814 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,815 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,816 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,817 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,818 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,819 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,820 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,821 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,822 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:33:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-28 21:33:14,822 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:14,823 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand 36 states. [2020-07-28 21:33:14,823 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:33:14,823 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:33:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,825 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:33:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:33:14,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,826 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 36 states. [2020-07-28 21:33:14,826 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 36 states. [2020-07-28 21:33:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,829 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-07-28 21:33:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:33:14,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,830 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:14,830 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-28 21:33:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-07-28 21:33:14,832 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-07-28 21:33:14,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:14,833 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-07-28 21:33:14,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:33:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-07-28 21:33:14,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 21:33:14,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:33:14,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:33:14,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:33:14,834 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:33:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:33:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1202444330, now seen corresponding path program 1 times [2020-07-28 21:33:14,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:33:14,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587505839] [2020-07-28 21:33:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:33:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:33:14,887 INFO L280 TraceCheckUtils]: 0: Hoare triple {5335#true} [223] ULTIMATE.startENTRY-->L766: Formula: (let ((.cse0 (store |v_#valid_56| 0 0))) (and (= (store |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| (store (select |v_#memory_int_24| |v_ULTIMATE.start_main_~#t2046~0.base_22|) |v_ULTIMATE.start_main_~#t2046~0.offset_19| 0)) |v_#memory_int_23|) (= 0 v_~y~0_21) (= 0 |v_ULTIMATE.start_main_~#t2046~0.offset_19|) (= |v_#valid_54| (store .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22| 1)) (= (select .cse0 |v_ULTIMATE.start_main_~#t2046~0.base_22|) 0) (= (store |v_#length_24| |v_ULTIMATE.start_main_~#t2046~0.base_22| 4) |v_#length_23|) (= 0 v_~z~0_58) (= 0 v_~main$tmp_guard1~0_43) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (= 0 v_~x~0_58) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2046~0.base_22|) (= 0 |v_#NULL.base_3|) (= 0 v_~__unbuffered_p2_EAX~0_50) (= 0 |v_#NULL.offset_3|) (= v_~__unbuffered_cnt~0_143 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_24|, #length=|v_#length_24|} OutVars{ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_27|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_8|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_18|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2046~0.base=|v_ULTIMATE.start_main_~#t2046~0.base_22|, #NULL.offset=|v_#NULL.offset_3|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_43, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, #NULL.base=|v_#NULL.base_3|, ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_17|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ULTIMATE.start_main_~#t2046~0.offset=|v_ULTIMATE.start_main_~#t2046~0.offset_19|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_23|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_22|, #valid=|v_#valid_54|, #memory_int=|v_#memory_int_23|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_50, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_143, ~z~0=v_~z~0_58, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_21|, ~y~0=v_~y~0_21, ~x~0=v_~x~0_58} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2046~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2048~0.offset, ULTIMATE.start_main_~#t2046~0.offset, ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~z~0, ULTIMATE.start_main_~#t2048~0.base, ~y~0, ~x~0] {5335#true} is VALID [2020-07-28 21:33:14,888 INFO L280 TraceCheckUtils]: 1: Hoare triple {5335#true} [163] L766-->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] {5335#true} is VALID [2020-07-28 21:33:14,888 INFO L280 TraceCheckUtils]: 2: Hoare triple {5335#true} [202] L766-1-->L768: Formula: (and (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| 4)) (= 0 |v_ULTIMATE.start_main_~#t2047~0.offset_10|) (= 0 (select |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (not (= 0 |v_ULTIMATE.start_main_~#t2047~0.base_12|)) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2047~0.base_12|) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t2047~0.base_12| 1)) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2047~0.base_12|) |v_ULTIMATE.start_main_~#t2047~0.offset_10| 1)) |v_#memory_int_15|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_16|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2047~0.base=|v_ULTIMATE.start_main_~#t2047~0.base_12|, ULTIMATE.start_main_~#t2047~0.offset=|v_ULTIMATE.start_main_~#t2047~0.offset_10|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_15|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2047~0.base, ULTIMATE.start_main_~#t2047~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {5335#true} is VALID [2020-07-28 21:33:14,888 INFO L280 TraceCheckUtils]: 3: Hoare triple {5335#true} [165] L768-->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] {5335#true} is VALID [2020-07-28 21:33:14,889 INFO L280 TraceCheckUtils]: 4: Hoare triple {5335#true} [186] P1ENTRY-->L728: Formula: (and (= 2 v_~x~0_11) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_11} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {5335#true} is VALID [2020-07-28 21:33:14,889 INFO L280 TraceCheckUtils]: 5: Hoare triple {5335#true} [152] L728-->L731: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] {5335#true} is VALID [2020-07-28 21:33:14,890 INFO L280 TraceCheckUtils]: 6: Hoare triple {5335#true} [203] L768-1-->L770: Formula: (and (< |v_#StackHeapBarrier_12| |v_ULTIMATE.start_main_~#t2048~0.base_11|) (= |v_#valid_35| (store |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11| 1)) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| 4) |v_#length_17|) (not (= |v_ULTIMATE.start_main_~#t2048~0.base_11| 0)) (= 0 |v_ULTIMATE.start_main_~#t2048~0.offset_10|) (= 0 (select |v_#valid_36| |v_ULTIMATE.start_main_~#t2048~0.base_11|)) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t2048~0.base_11|) |v_ULTIMATE.start_main_~#t2048~0.offset_10| 2)) |v_#memory_int_17|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_36|, #memory_int=|v_#memory_int_18|, #length=|v_#length_18|} OutVars{ULTIMATE.start_main_~#t2048~0.offset=|v_ULTIMATE.start_main_~#t2048~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_12|, #valid=|v_#valid_35|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_17|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2048~0.base=|v_ULTIMATE.start_main_~#t2048~0.base_11|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2048~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t2048~0.base] {5335#true} is VALID [2020-07-28 21:33:14,890 INFO L280 TraceCheckUtils]: 7: Hoare triple {5335#true} [167] L770-->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] {5335#true} is VALID [2020-07-28 21:33:14,890 INFO L280 TraceCheckUtils]: 8: Hoare triple {5335#true} [185] P2ENTRY-->L743: Formula: (and (= v_~y~0_11 v_~__unbuffered_p2_EAX~0_12) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_11} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {5335#true} is VALID [2020-07-28 21:33:14,891 INFO L280 TraceCheckUtils]: 9: Hoare triple {5335#true} [205] L731-->P1EXIT: Formula: (and (= (+ v_~__unbuffered_cnt~0_75 1) v_~__unbuffered_cnt~0_74) (= 0 |v_P1Thread1of1ForFork1_#res.base_5|) (= 0 |v_P1Thread1of1ForFork1_#res.offset_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_75} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_74, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_5|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {5335#true} is VALID [2020-07-28 21:33:14,891 INFO L280 TraceCheckUtils]: 10: Hoare triple {5335#true} [158] L743-->L746: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] {5335#true} is VALID [2020-07-28 21:33:14,891 INFO L280 TraceCheckUtils]: 11: Hoare triple {5335#true} [192] P0ENTRY-->L713: Formula: (and (= 2 v_~z~0_11) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~z~0=v_~z~0_11, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~z~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {5335#true} is VALID [2020-07-28 21:33:14,892 INFO L280 TraceCheckUtils]: 12: Hoare triple {5335#true} [146] L713-->L716: Formula: (= v_~x~0_1 1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] {5337#(= 1 ~x~0)} is VALID [2020-07-28 21:33:14,893 INFO L280 TraceCheckUtils]: 13: Hoare triple {5337#(= 1 ~x~0)} [195] L746-->P2EXIT: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_52 1) v_~__unbuffered_cnt~0_51) (= 0 |v_P2Thread1of1ForFork2_#res.base_11|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_52} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_51, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {5337#(= 1 ~x~0)} is VALID [2020-07-28 21:33:14,894 INFO L280 TraceCheckUtils]: 14: Hoare triple {5337#(= 1 ~x~0)} [207] L716-->P0EXIT: Formula: (and (= v_~__unbuffered_cnt~0_86 (+ v_~__unbuffered_cnt~0_87 1)) (= 0 |v_P0Thread1of1ForFork0_#res.offset_5|) (= 0 |v_P0Thread1of1ForFork0_#res.base_5|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_5|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_86} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {5337#(= 1 ~x~0)} is VALID [2020-07-28 21:33:14,894 INFO L280 TraceCheckUtils]: 15: Hoare triple {5337#(= 1 ~x~0)} [208] L770-1-->L2: Formula: (and (= (mod v_~main$tmp_guard0~0_25 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_92))) (or (and .cse0 (= 1 v_~main$tmp_guard0~0_25)) (and (= 0 v_~main$tmp_guard0~0_25) (not .cse0))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_7|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_16, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_18|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_92, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_25} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {5337#(= 1 ~x~0)} is VALID [2020-07-28 21:33:14,895 INFO L280 TraceCheckUtils]: 16: Hoare triple {5337#(= 1 ~x~0)} [216] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_26 256)) (= v_ULTIMATE.start___VERIFIER_assert_~expression_13 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= 2 v_~x~0_39) (= 2 v_~z~0_37) (= 0 v_~main$tmp_guard1~0_26) (= 1 v_~__unbuffered_p2_EAX~0_33)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_19|, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_13, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_26, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_33, ~z~0=v_~z~0_37, ~x~0=v_~x~0_39, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {5336#false} is VALID [2020-07-28 21:33:14,896 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 21:33:14,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587505839] [2020-07-28 21:33:14,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:33:14,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:33:14,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783764047] [2020-07-28 21:33:14,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 21:33:14,898 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:33:14,898 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:33:14,917 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:33:14,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:33:14,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:33:14,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:33:14,918 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-07-28 21:33:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,939 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-07-28 21:33:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:33:14,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-28 21:33:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:33:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 21:33:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:33:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-07-28 21:33:14,941 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 19 transitions. [2020-07-28 21:33:14,969 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:33:14,969 INFO L225 Difference]: With dead ends: 35 [2020-07-28 21:33:14,969 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:33:14,970 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 21:33:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:33:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:33:14,970 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:33:14,971 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:33:14,971 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:33:14,971 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:33:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,971 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:33:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:33:14,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,972 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,972 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:33:14,972 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:33:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:33:14,972 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:33:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:33:14,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,973 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:33:14,973 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:33:14,973 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:33:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:33:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:33:14,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-28 21:33:14,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:33:14,974 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:33:14,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:33:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:33:14,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:33:14,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:33:14,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:33:14 BasicIcfg [2020-07-28 21:33:14,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:33:14,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:33:14,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:33:14,980 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:33:14,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:33:09" (3/4) ... [2020-07-28 21:33:14,984 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:33:14,990 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:33:14,990 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:33:14,991 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:33:14,995 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:33:14,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:33:14,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:33:15,041 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:33:15,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:33:15,045 INFO L168 Benchmark]: Toolchain (without parser) took 6863.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. [2020-07-28 21:33:15,045 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:33:15,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:33:15,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:33:15,047 INFO L168 Benchmark]: Boogie Preprocessor took 51.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:33:15,048 INFO L168 Benchmark]: RCFGBuilder took 525.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:33:15,049 INFO L168 Benchmark]: TraceAbstraction took 5513.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -45.0 MB). Peak memory consumption was 113.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:33:15,049 INFO L168 Benchmark]: Witness Printer took 62.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:33:15,052 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 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 650.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 525.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5513.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -45.0 MB). Peak memory consumption was 113.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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: 2.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 144 SDtfs, 122 SDslu, 169 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...