./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer --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 08947af3b6f9b8a272faa540a059213a9b1de888 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer --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 08947af3b6f9b8a272faa540a059213a9b1de888 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:09:52,595 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:09:52,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:09:52,604 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:09:52,604 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:09:52,605 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:09:52,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:09:52,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:09:52,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:09:52,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:09:52,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:09:52,609 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:09:52,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:09:52,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:09:52,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:09:52,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:09:52,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:09:52,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:09:52,616 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:09:52,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:09:52,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:09:52,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:09:52,620 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:09:52,620 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:09:52,621 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:09:52,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:09:52,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:09:52,623 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:09:52,623 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:09:52,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:09:52,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:09:52,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:09:52,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:09:52,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:09:52,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:09:52,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:09:52,626 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:09:52,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:09:52,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:09:52,637 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:09:52,638 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:09:52,638 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:09:52,638 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:09:52,638 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:09:52,638 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:09:52,639 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:09:52,640 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:09:52,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:09:52,641 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:09:52,641 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer 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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-28 13:09:52,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:09:52,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:09:52,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:09:52,680 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:09:52,681 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:09:52,681 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-28 13:09:52,730 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/9970ba239/9239193df0114b37ac20014c22cb1a46/FLAG931923ebb [2018-11-28 13:09:53,039 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:09:53,039 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-28 13:09:53,044 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/9970ba239/9239193df0114b37ac20014c22cb1a46/FLAG931923ebb [2018-11-28 13:09:53,054 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/9970ba239/9239193df0114b37ac20014c22cb1a46 [2018-11-28 13:09:53,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:09:53,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:09:53,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:53,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:09:53,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:09:53,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd6def2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53, skipping insertion in model container [2018-11-28 13:09:53,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:09:53,083 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:09:53,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:53,197 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:09:53,220 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:53,236 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:09:53,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53 WrapperNode [2018-11-28 13:09:53,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:53,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:53,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:09:53,237 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:09:53,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:53,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:09:53,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:09:53,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:09:53,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... [2018-11-28 13:09:53,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:09:53,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:09:53,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:09:53,329 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:09:53,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/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 [2018-11-28 13:09:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-28 13:09:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-28 13:09:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-28 13:09:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-28 13:09:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-28 13:09:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-28 13:09:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:09:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:09:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-28 13:09:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-28 13:09:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 13:09:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:09:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:09:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-28 13:09:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:09:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:09:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:09:53,671 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:09:53,672 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:09:53,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:53 BoogieIcfgContainer [2018-11-28 13:09:53,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:09:53,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:09:53,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:09:53,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:09:53,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:09:53" (1/3) ... [2018-11-28 13:09:53,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae7b545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:53, skipping insertion in model container [2018-11-28 13:09:53,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:53" (2/3) ... [2018-11-28 13:09:53,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae7b545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:53, skipping insertion in model container [2018-11-28 13:09:53,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:53" (3/3) ... [2018-11-28 13:09:53,678 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-28 13:09:53,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:09:53,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 13:09:53,708 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 13:09:53,736 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:09:53,737 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:09:53,737 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:09:53,737 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:09:53,737 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:09:53,737 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:09:53,737 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:09:53,737 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:09:53,737 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:09:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 13:09:53,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:09:53,760 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:53,761 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:53,763 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:53,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:53,768 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-11-28 13:09:53,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:09:53,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:09:53,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:53,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:53,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:09:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:09:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:09:53,960 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:09:53,969 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-28 13:09:53,970 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-28 13:09:53,971 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-28 13:09:53,971 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,971 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-28 13:09:53,971 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,972 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-28 13:09:53,972 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,972 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-28 13:09:53,972 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,972 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,973 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,973 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,973 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-28 13:09:53,973 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,973 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-28 13:09:53,974 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-28 13:09:53,974 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2018-11-28 13:09:53,974 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2018-11-28 13:09:53,975 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2018-11-28 13:09:53,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2018-11-28 13:09:53,975 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,975 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,976 WARN L416 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled [2018-11-28 13:09:53,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-28 13:09:53,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-28 13:09:53,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-28 13:09:53,982 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-11-28 13:09:53,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.mantissa [2018-11-28 13:09:53,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.negative [2018-11-28 13:09:53,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res.ieee.exponent [2018-11-28 13:09:53,983 WARN L1298 BoogieBacktranslator]: unknown boogie variable #res!f [2018-11-28 13:09:53,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:09:53 BoogieIcfgContainer [2018-11-28 13:09:53,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:09:53,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:09:53,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:09:53,991 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:09:53,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:53" (3/4) ... [2018-11-28 13:09:53,994 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:09:53,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:09:53,994 INFO L168 Benchmark]: Toolchain (without parser) took 938.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -118.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,996 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:09:53,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,997 INFO L168 Benchmark]: Boogie Preprocessor took 71.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,998 INFO L168 Benchmark]: RCFGBuilder took 343.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,998 INFO L168 Benchmark]: TraceAbstraction took 317.71 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:09:53,999 INFO L168 Benchmark]: Witness Printer took 3.29 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. [2018-11-28 13:09:54,002 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 317.71 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.29 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret5 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #t~ret6 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable #res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable #res!f * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L168] CALL testOne() [L128] ieee754_float f1, f2; VAL [f1={21:0}, f2={27:0}] [L130] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=25, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L130] RET, EXPR returnsStructure(0) VAL [f1={21:0}, f2={27:0}, returnsStructure(0)=0returnsStructure(0)=25returnsStructure(0)=0returnsStructure(0)=0] [L130] f1 = returnsStructure(0) [L131] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=19, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L131] RET, EXPR returnsStructure(1) VAL [f1={21:0}, f2={27:0}, returnsStructure(1)=19returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [f1={21:0}, f1.ieee.negative=0, f2={27:0}, f2.ieee.negative=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [f1={21:0}, f2={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:09:55,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:09:55,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:09:55,537 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:09:55,538 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:09:55,538 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:09:55,539 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:09:55,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:09:55,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:09:55,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:09:55,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:09:55,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:09:55,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:09:55,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:09:55,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:09:55,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:09:55,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:09:55,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:09:55,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:09:55,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:09:55,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:09:55,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:09:55,554 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:09:55,555 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:09:55,555 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:09:55,556 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:09:55,556 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:09:55,557 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:09:55,558 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:09:55,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:09:55,559 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:09:55,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:09:55,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:09:55,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:09:55,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:09:55,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:09:55,561 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 13:09:55,572 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:09:55,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:09:55,573 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:09:55,573 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:09:55,574 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:09:55,574 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:09:55,574 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:09:55,574 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:09:55,574 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:09:55,574 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 13:09:55,575 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:09:55,576 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:09:55,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:09:55,577 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 13:09:55,577 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 13:09:55,578 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer 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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2018-11-28 13:09:55,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:09:55,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:09:55,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:09:55,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:09:55,616 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:09:55,617 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-28 13:09:55,657 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/14c17b19f/e1a495f7f1a44bb99106641b81c55e22/FLAG15250b105 [2018-11-28 13:09:55,969 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:09:55,970 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/sv-benchmarks/c/floats-cbmc-regression/float22_true-unreach-call_true-termination.i [2018-11-28 13:09:55,975 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/14c17b19f/e1a495f7f1a44bb99106641b81c55e22/FLAG15250b105 [2018-11-28 13:09:55,988 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/data/14c17b19f/e1a495f7f1a44bb99106641b81c55e22 [2018-11-28 13:09:55,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:09:55,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:09:55,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:55,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:09:55,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:09:55,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:55" (1/1) ... [2018-11-28 13:09:56,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c782f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:55, skipping insertion in model container [2018-11-28 13:09:56,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:09:55" (1/1) ... [2018-11-28 13:09:56,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:09:56,027 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:09:56,173 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:56,179 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:09:56,213 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:09:56,238 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:09:56,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56 WrapperNode [2018-11-28 13:09:56,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:09:56,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:56,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:09:56,239 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:09:56,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:09:56,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:09:56,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:09:56,268 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:09:56,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... [2018-11-28 13:09:56,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:09:56,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:09:56,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:09:56,305 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:09:56,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/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 [2018-11-28 13:09:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure testOne [2018-11-28 13:09:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure testOne [2018-11-28 13:09:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure testThree [2018-11-28 13:09:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure testThree [2018-11-28 13:09:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2018-11-28 13:09:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2018-11-28 13:09:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:09:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:09:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure testTwo [2018-11-28 13:09:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure testTwo [2018-11-28 13:09:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 13:09:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:09:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:09:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:09:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 13:09:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2018-11-28 13:09:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2018-11-28 13:09:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:09:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:09:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 13:09:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:09:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 13:09:56,502 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,513 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,523 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,529 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,572 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,585 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,591 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,596 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:09:56,633 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:09:56,633 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:09:56,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:56 BoogieIcfgContainer [2018-11-28 13:09:56,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:09:56,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:09:56,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:09:56,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:09:56,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:09:55" (1/3) ... [2018-11-28 13:09:56,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25421943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:56, skipping insertion in model container [2018-11-28 13:09:56,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:09:56" (2/3) ... [2018-11-28 13:09:56,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25421943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:09:56, skipping insertion in model container [2018-11-28 13:09:56,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:56" (3/3) ... [2018-11-28 13:09:56,639 INFO L112 eAbstractionObserver]: Analyzing ICFG float22_true-unreach-call_true-termination.i [2018-11-28 13:09:56,646 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:09:56,651 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 13:09:56,663 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 13:09:56,684 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:09:56,684 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:09:56,685 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:09:56,685 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:09:56,685 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:09:56,685 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:09:56,685 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:09:56,685 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:09:56,685 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:09:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 13:09:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:09:56,703 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:09:56,704 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:09:56,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:09:56,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:09:56,709 INFO L82 PathProgramCache]: Analyzing trace with hash 355812978, now seen corresponding path program 1 times [2018-11-28 13:09:56,712 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:09:56,712 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 13:09:56,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:09:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:09:56,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:09:56,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:56,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:09:56,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:09:56,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,893 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-28 13:09:56,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:09:56,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:09:56,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:09:56,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:09:56,955 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,967 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,977 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:56,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:09:57,006 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:09:57,069 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,076 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,078 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-28 13:09:57,080 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:09:57,114 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:65 [2018-11-28 13:09:57,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-11-28 13:09:57,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:09:57,204 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-28 13:09:57,222 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,224 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,226 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-28 13:09:57,249 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,251 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,253 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:09:57,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-28 13:09:57,269 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,310 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,329 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,346 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:09:57,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:09:57,432 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:95, output treesize:83 [2018-11-28 13:10:00,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,054 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,059 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:10:00,060 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-28 13:10:00,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:10:00,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:10:00,302 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:10:00,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:10:00,313 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,330 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,361 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:10:00,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:10:00,506 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:00,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:10:00,508 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,527 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,552 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:00,601 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:10:00,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:10:00,691 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-11-28 13:10:01,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-11-28 13:10:01,627 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:01,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-11-28 13:10:01,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:01,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:10:01,649 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:01,662 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:01,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:01,680 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:113, output treesize:25 [2018-11-28 13:10:01,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:01,739 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:10:06,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:10:06,511 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:10:06,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:06,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:06,580 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,581 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:10:06,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:10:06,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,604 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-28 13:10:06,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:10:06,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:10:06,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:10:06,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:06,676 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,685 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,694 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,719 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:06,720 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:10:06,743 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,745 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,746 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-28 13:10:06,747 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:06,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:06,771 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:66 [2018-11-28 13:10:06,949 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-11-28 13:10:06,980 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:06,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:06,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-28 13:10:07,011 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,013 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,015 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-28 13:10:07,040 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,042 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,044 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:07,061 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-28 13:10:07,061 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:07,089 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:07,111 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:07,131 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:07,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:07,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:07,225 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:98, output treesize:86 [2018-11-28 13:10:12,888 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:12,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:12,900 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:10:12,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-28 13:10:12,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,070 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:13,104 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:10:13,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:10:13,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:13,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:10:13,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:10:13,149 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,172 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,217 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,459 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:13,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:10:13,473 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:10:13,481 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:13,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:10:13,483 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,501 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,527 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:13,579 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:10:13,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:10:13,691 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:129, output treesize:209 [2018-11-28 13:10:14,333 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-28 13:10:14,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:10:14,338 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:14,360 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:14,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-11-28 13:10:14,361 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:14,369 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:14,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:14,382 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:109, output treesize:25 [2018-11-28 13:10:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:14,385 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:10:17,922 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:10:17,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-11-28 13:10:17,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 13:10:17,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 13:10:17,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=317, Unknown=4, NotChecked=0, Total=380 [2018-11-28 13:10:17,935 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 15 states. [2018-11-28 13:10:27,971 WARN L180 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-28 13:10:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:37,013 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-28 13:10:37,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:10:37,015 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2018-11-28 13:10:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:37,024 INFO L225 Difference]: With dead ends: 104 [2018-11-28 13:10:37,024 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 13:10:37,027 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=80, Invalid=422, Unknown=4, NotChecked=0, Total=506 [2018-11-28 13:10:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 13:10:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-28 13:10:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 13:10:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-28 13:10:37,063 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 19 [2018-11-28 13:10:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:37,064 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-28 13:10:37,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 13:10:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-28 13:10:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 13:10:37,066 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:37,066 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:37,066 INFO L423 AbstractCegarLoop]: === Iteration 2 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:37,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash -787169268, now seen corresponding path program 1 times [2018-11-28 13:10:37,067 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:10:37,067 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 13:10:37,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:37,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:37,253 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-11-28 13:10:37,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-28 13:10:37,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-28 13:10:37,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-11-28 13:10:37,279 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,284 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,286 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,291 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:54, output treesize:15 [2018-11-28 13:10:37,311 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:37,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:10:37,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:10:37,314 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,319 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,324 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-28 13:10:37,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:10:37,358 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:10:37,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:10:37,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:37,373 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,382 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,392 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,402 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:37,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:37,421 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:10:40,261 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 13:10:40,268 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,270 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-28 13:10:40,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:40,297 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-11-28 13:10:40,338 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-11-28 13:10:40,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:40,380 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-28 13:10:40,397 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,399 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,401 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-28 13:10:40,422 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,424 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:40,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-28 13:10:40,442 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,473 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,494 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,515 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:40,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:40,607 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-11-28 13:10:50,185 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 29 [2018-11-28 13:10:50,202 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,209 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,213 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,216 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2018-11-28 13:10:50,218 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,343 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:10:50,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:10:50,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:10:50,454 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:10:50,455 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,472 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,505 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,641 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:10:50,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:10:50,657 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:50,658 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:10:50,658 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,674 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,697 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:50,754 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:10:50,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:10:50,836 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:123, output treesize:205 [2018-11-28 13:10:51,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-28 13:10:51,026 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:51,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-11-28 13:10:51,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:10:51,044 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,065 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-11-28 13:10:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 13:10:51,104 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:10:51,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:10:51,746 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:10:51,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:51,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:51,803 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:51,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:10:51,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:10:51,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,814 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-28 13:10:51,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:10:51,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:10:51,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:10:51,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:51,844 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,860 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,871 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,882 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:51,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:51,900 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:10:53,949 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:53,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:53,953 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:53,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-28 13:10:53,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:53,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:53,980 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:64 [2018-11-28 13:10:53,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,017 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2018-11-28 13:10:54,029 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:10:54,042 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-28 13:10:54,061 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,064 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,067 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-11-28 13:10:54,094 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,097 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,099 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:54,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 46 [2018-11-28 13:10:54,121 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:54,151 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:54,175 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:54,198 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:54,238 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:54,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:10:54,291 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:92, output treesize:80 [2018-11-28 13:10:56,320 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_32| (_ BitVec 32))) (and (= (store |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_32| (store (store (store (select |c_old(#memory_int)| |v_returnsStructure_~#c~1.base_32|) (_ bv0 32) (bvand (_ bv1 32) |c_returnsStructure_#in~index|)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32))) |c_#memory_int|) (= (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_32|) (_ bv0 1)) (= |c_returnsStructure_#res.f| (let ((.cse0 (select (select |c_#memory_int| |v_returnsStructure_~#c~1.base_32|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) is different from true [2018-11-28 13:10:56,340 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,344 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,348 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,351 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,354 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-28 13:10:56,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,486 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:10:56,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:10:56,589 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:10:56,599 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:10:56,599 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,631 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,672 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,826 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:10:56,833 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:10:56,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:56,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:10:56,841 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,859 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,882 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:56,960 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:10:57,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:10:57,073 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:125, output treesize:205 [2018-11-28 13:10:57,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-28 13:10:57,219 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:10:57,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-11-28 13:10:57,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:57,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:10:57,236 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:57,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:57,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:57,259 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:115, output treesize:25 [2018-11-28 13:10:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2018-11-28 13:10:57,264 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:11:03,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:11:03,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 14 [2018-11-28 13:11:03,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 13:11:03,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 13:11:03,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=226, Unknown=7, NotChecked=30, Total=306 [2018-11-28 13:11:03,363 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 14 states. [2018-11-28 13:11:11,708 WARN L180 SmtUtils]: Spent 8.14 s on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2018-11-28 13:11:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:14,291 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-28 13:11:14,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:11:14,292 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2018-11-28 13:11:14,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:14,293 INFO L225 Difference]: With dead ends: 49 [2018-11-28 13:11:14,294 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 13:11:14,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=61, Invalid=316, Unknown=7, NotChecked=36, Total=420 [2018-11-28 13:11:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 13:11:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-28 13:11:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 13:11:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-11-28 13:11:14,300 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 35 [2018-11-28 13:11:14,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:14,300 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-28 13:11:14,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 13:11:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-11-28 13:11:14,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 13:11:14,301 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:14,301 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:14,301 INFO L423 AbstractCegarLoop]: === Iteration 3 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:14,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:14,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2050564504, now seen corresponding path program 1 times [2018-11-28 13:11:14,302 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:11:14,302 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 13:11:14,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:14,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:14,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 13:11:14,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-28 13:11:14,601 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:14,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:14,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:14,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2018-11-28 13:11:16,627 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_40| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_40|)))) is different from true [2018-11-28 13:11:16,633 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:16,636 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:16,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:16,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-11-28 13:11:16,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:16,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:16,654 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:23 [2018-11-28 13:11:18,676 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_41| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_41|)) (= (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_41| (_ bv0 1)) |c_#valid|))) is different from true [2018-11-28 13:11:18,684 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,685 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,689 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:11:18,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-11-28 13:11:18,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:18,713 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:30 [2018-11-28 13:11:18,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-11-28 13:11:18,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-11-28 13:11:18,741 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-28 13:11:18,759 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2018-11-28 13:11:18,774 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:11:18,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:18,797 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:54 [2018-11-28 13:11:18,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:11:18,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:11:18,884 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:11:18,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:11:18,891 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,903 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,912 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:18,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:18,935 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:11:18,973 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,975 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,978 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:18,989 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:11:18,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 55 [2018-11-28 13:11:18,990 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:19,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:19,027 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:76 [2018-11-28 13:11:19,089 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:19,100 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-11-28 13:11:19,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:11:19,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:19,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:19,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:19,149 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:89 [2018-11-28 13:11:23,810 WARN L180 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-28 13:11:23,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2018-11-28 13:11:23,825 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:23,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:23,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:23,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 116 [2018-11-28 13:11:24,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 113 [2018-11-28 13:11:24,021 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-11-28 13:11:24,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-28 13:11:24,034 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,057 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,086 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,211 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,212 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:11:24,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:11:24,223 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:11:24,224 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,235 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,255 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,301 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:11:24,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:24,395 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:132, output treesize:213 [2018-11-28 13:11:24,711 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,712 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,713 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2018-11-28 13:11:24,725 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-11-28 13:11:24,726 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:24,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:24,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-11-28 13:11:24,756 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:24,783 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:102, output treesize:25 [2018-11-28 13:11:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-11-28 13:11:24,966 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:11:29,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:11:29,643 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:11:29,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:29,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:29,728 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:29,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:11:29,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:11:29,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:29,739 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:29,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:29,745 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-28 13:11:30,772 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_returnsStructure_~#c~1.base_44| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |v_returnsStructure_~#c~1.base_44| (_ bv0 1))) (= (_ bv0 1) (select |c_old(#valid)| |v_returnsStructure_~#c~1.base_44|)))) is different from true [2018-11-28 13:11:30,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:30,778 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:30,779 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:30,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-28 13:11:30,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:30,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:30,792 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-11-28 13:11:30,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:11:30,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:11:30,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:11:30,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:11:30,860 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:30,868 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:30,877 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:30,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:30,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:30,901 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:51 [2018-11-28 13:11:31,093 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,100 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,106 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 41 [2018-11-28 13:11:31,119 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-11-28 13:11:31,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-11-28 13:11:31,206 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:211 [2018-11-28 13:11:31,480 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-11-28 13:11:31,804 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92 [2018-11-28 13:11:31,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2018-11-28 13:11:31,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-11-28 13:11:31,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:31,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:31,928 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-28 13:11:31,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 13:11:31,937 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:31,969 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:31,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-11-28 13:11:31,969 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:31,983 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-28 13:11:32,095 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,095 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-11-28 13:11:32,096 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,114 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 13:11:32,114 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,125 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-11-28 13:11:32,179 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 15 variables, input treesize:300, output treesize:112 [2018-11-28 13:11:32,447 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:11:32,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:11:32,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:11:32,466 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:11:32,466 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,474 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,481 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,488 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:11:32,503 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:11:32,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,591 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,594 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 88 [2018-11-28 13:11:32,596 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,692 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,694 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,697 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,698 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,699 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,700 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2018-11-28 13:11:32,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:32,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:32,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:153, output treesize:142 [2018-11-28 13:11:32,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:32,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 88 [2018-11-28 13:11:32,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:11:32,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:33,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:33,102 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:33,111 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 84 [2018-11-28 13:11:33,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:11:33,122 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:33,152 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:33,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:33,221 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:171, output treesize:173 [2018-11-28 13:11:38,884 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:38,887 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:38,890 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:38,891 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:11:38,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 122 [2018-11-28 13:11:38,892 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:39,346 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,366 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,375 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,378 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 122 [2018-11-28 13:11:39,379 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:39,882 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,888 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,931 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-11-28 13:11:39,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,943 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,947 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:11:39,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:39,951 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 142 [2018-11-28 13:11:39,957 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2018-11-28 13:11:40,014 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:40,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-11-28 13:11:40,016 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,031 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,068 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 117 [2018-11-28 13:11:40,444 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:40,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-11-28 13:11:40,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2018-11-28 13:11:40,450 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,467 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,507 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:40,650 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:11:41,048 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:41,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:41,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 152 [2018-11-28 13:11:41,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 149 [2018-11-28 13:11:41,143 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:41,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-11-28 13:11:41,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-28 13:11:41,153 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,171 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,217 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,433 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:41,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 92 [2018-11-28 13:11:41,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:11:41,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:41,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:11:41,444 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,465 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,499 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:41,624 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:11:41,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-11-28 13:11:41,911 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:259, output treesize:393 [2018-11-28 13:11:44,247 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:44,249 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:44,249 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2018-11-28 13:11:44,260 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2018-11-28 13:11:44,261 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-28 13:11:44,287 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:11:44,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-11-28 13:11:44,288 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:11:44,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:44,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:11:44,312 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:94, output treesize:25 [2018-11-28 13:11:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2018-11-28 13:11:44,320 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:11:48,741 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:11:48,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 26 [2018-11-28 13:11:48,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-28 13:11:48,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-28 13:11:48,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=562, Unknown=8, NotChecked=150, Total=812 [2018-11-28 13:11:48,742 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 26 states. [2018-11-28 13:11:55,208 WARN L180 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-11-28 13:12:03,642 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-28 13:12:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:17,861 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2018-11-28 13:12:17,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 13:12:17,862 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2018-11-28 13:12:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:12:17,863 INFO L225 Difference]: With dead ends: 47 [2018-11-28 13:12:17,864 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 13:12:17,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 35.2s TimeCoverageRelationStatistics Valid=156, Invalid=904, Unknown=8, NotChecked=192, Total=1260 [2018-11-28 13:12:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 13:12:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 13:12:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 13:12:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-11-28 13:12:17,871 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 46 [2018-11-28 13:12:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:12:17,871 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-11-28 13:12:17,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-28 13:12:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-11-28 13:12:17,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-28 13:12:17,873 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:12:17,873 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:12:17,873 INFO L423 AbstractCegarLoop]: === Iteration 4 === [testOneErr0ASSERT_VIOLATIONERROR_FUNCTION, testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION, testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:12:17,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:17,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1306260443, now seen corresponding path program 1 times [2018-11-28 13:12:17,874 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:12:17,874 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 13:12:17,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:18,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:18,223 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:18,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:12:18,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:12:18,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,238 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,243 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-28 13:12:18,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:12:18,265 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:12:18,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:12:18,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:12:18,286 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,294 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,303 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:18,333 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:12:18,386 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:18,387 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:18,388 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:18,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-28 13:12:18,389 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:18,416 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-11-28 13:12:18,448 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:18,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-11-28 13:12:18,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:12:18,470 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:18,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:18,529 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-11-28 13:12:26,339 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,342 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,343 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:12:26,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-28 13:12:26,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,457 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:12:26,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:12:26,542 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:12:26,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:12:26,551 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,567 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,591 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,741 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:12:26,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:12:26,753 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:26,754 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:12:26,754 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,765 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,783 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:26,829 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:12:26,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:12:26,901 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:124, output treesize:203 [2018-11-28 13:12:27,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2018-11-28 13:12:27,157 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:27,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 12 [2018-11-28 13:12:27,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:27,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:12:27,170 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:27,179 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:27,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:27,192 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-11-28 13:12:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-28 13:12:27,227 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:12:28,319 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-11-28 13:12:30,377 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_returnsField_~#c~0.base_26| (_ BitVec 32)) (|testThree_~#f2~2.offset| (_ BitVec 32)) (|v_q#valueAsBitvector_24| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_26|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_26| .cse1))) (store .cse0 |c_testThree_~#f2~2.base| (store (select .cse0 |c_testThree_~#f2~2.base|) |testThree_~#f2~2.offset| |v_q#valueAsBitvector_24|))) |c_testThree_~#f1~2.base|) |c_testThree_~#f1~2.offset|) |v_q#valueAsBitvector_24|)) (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_26|))) (not (= (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) |v_q#valueAsBitvector_24|) ((_ extract 30 23) |v_q#valueAsBitvector_24|) ((_ extract 22 0) |v_q#valueAsBitvector_24|))))))) is different from false [2018-11-28 13:12:30,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:30,395 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:30,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:30,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:30,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:30,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 13:12:30,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 13:12:30,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:15 [2018-11-28 13:12:30,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-28 13:12:30,491 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-11-28 13:12:30,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2018-11-28 13:12:30,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-28 13:12:30,503 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,511 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,519 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,527 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,543 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:30,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:56 [2018-11-28 13:12:30,568 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:30,569 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:30,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:30,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-28 13:12:30,571 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:30,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:63 [2018-11-28 13:12:30,599 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:30,607 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-11-28 13:12:30,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-28 13:12:30,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,639 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:30,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:12:30,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:81 [2018-11-28 13:12:32,866 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:32,868 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:32,868 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:12:32,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-28 13:12:32,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:32,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:32,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 101 [2018-11-28 13:12:33,010 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-11-28 13:12:33,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:33,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-28 13:12:33,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-28 13:12:33,027 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,047 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,072 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,186 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:33,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 13:12:33,193 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-28 13:12:33,203 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:33,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-11-28 13:12:33,205 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,220 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,237 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,311 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 13:12:33,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-28 13:12:33,389 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:126, output treesize:203 [2018-11-28 13:12:33,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-11-28 13:12:33,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-28 13:12:33,855 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:12:33,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2018-11-28 13:12:33,875 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,882 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:12:33,895 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:100, output treesize:25 [2018-11-28 13:12:33,902 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-28 13:12:33,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 13:12:37,537 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:37,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 13:12:37,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:12:37,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:12:37,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=149, Unknown=3, NotChecked=24, Total=210 [2018-11-28 13:12:37,538 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 11 states. [2018-11-28 13:12:47,334 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-28 13:12:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:53,125 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-11-28 13:12:53,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:12:53,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2018-11-28 13:12:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:12:53,125 INFO L225 Difference]: With dead ends: 45 [2018-11-28 13:12:53,126 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:12:53,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 113 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=50, Invalid=223, Unknown=3, NotChecked=30, Total=306 [2018-11-28 13:12:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:12:53,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:12:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:12:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:12:53,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-11-28 13:12:53,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:12:53,127 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:12:53,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:12:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:12:53,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:12:53,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point testOneFINAL(lines 127 136) no Hoare annotation was computed. [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point testOneEXIT(lines 127 136) no Hoare annotation was computed. [2018-11-28 13:12:53,421 INFO L444 ceAbstractionStarter]: At program point testOneENTRY(lines 127 136) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point testOneErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-28 13:12:53,421 INFO L448 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (and (exists ((|v_returnsStructure_~#c~1.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 32) (select .cse0 (_ bv8 32))) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_4|)) (= (_ bv0 32) (select .cse0 (_ bv4 32))) (= (_ bv0 32) .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testOne_~#f1~0.base|) |testOne_~#f1~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1)) (not (= (_ bv0 1) (select |#valid| |testOne_~#f2~0.base|)))) [2018-11-28 13:12:53,422 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (and (not (= |testOne_~#f1~0.base| |testOne_~#f2~0.base|)) (= (_ bv1 1) (select |#valid| |testOne_~#f2~0.base|)) (= |testOne_~#f2~0.offset| (_ bv0 32)) (= (bvadd (select |#valid| |testOne_~#f1~0.base|) (_ bv1 1)) (_ bv0 1))) [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L133-3(line 133) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (and (exists ((|v_returnsField_~#c~0.base_20| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_20|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (_ bv0 1) (select |#valid| |v_returnsField_~#c~0.base_20|)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (_ bv0 32) .cse1) (= (let ((.cse2 (select (select |#memory_int| |testThree_~#f1~2.base|) |testThree_~#f1~2.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (not (= (_ bv0 1) (select |#valid| |testThree_~#f2~2.base|))) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-11-28 13:12:53,422 INFO L444 ceAbstractionStarter]: At program point L159(line 159) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testThree_~#f1~2.base|)) (= (_ bv1 1) (select |#valid| |testThree_~#f2~2.base|)) (not (= |testThree_~#f1~2.base| |testThree_~#f2~2.base|))) [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L162-3(line 162) no Hoare annotation was computed. [2018-11-28 13:12:53,422 INFO L448 ceAbstractionStarter]: For program point L159-1(line 159) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point testThreeErr0ASSERT_VIOLATIONERROR_FUNCTION(line 162) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point testThreeFINAL(lines 156 165) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point testThreeEXIT(lines 156 165) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L444 ceAbstractionStarter]: At program point testThreeENTRY(lines 156 165) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point L162(line 162) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L444 ceAbstractionStarter]: At program point returnsStructureENTRY(lines 116 124) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point returnsStructureFINAL(lines 116 124) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point returnsStructureEXIT(lines 116 124) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point returnsFieldEXIT(lines 106 114) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L444 ceAbstractionStarter]: At program point returnsFieldENTRY(lines 106 114) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point returnsFieldFINAL(lines 106 114) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:12:53,423 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:12:53,423 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:12:53,423 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 167 173) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 167 173) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point L170(line 170) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L451 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: true [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 167 173) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L451 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point testTwoEXIT(lines 139 153) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point testTwoErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point L147(line 147) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point testTwoErr1ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2018-11-28 13:12:53,424 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (exists ((|v_returnsStructure_~#c~1.base_21| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsStructure_~#c~1.base_21|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (_ bv0 1) (select |#valid| |v_returnsStructure_~#c~1.base_21|)) (= .cse1 (_ bv0 32)))))) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-11-28 13:12:53,424 INFO L448 ceAbstractionStarter]: For program point L143-1(line 143) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L444 ceAbstractionStarter]: At program point L145-3(line 145) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (not (= (_ bv0 1) (select |#valid| |testTwo_~#f1~1.base|))) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (exists ((|v_returnsStructure_~#c~1.base_40| (_ BitVec 32))) (= (select |#valid| |v_returnsStructure_~#c~1.base_40|) (_ bv0 1))) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-11-28 13:12:53,425 INFO L448 ceAbstractionStarter]: For program point testTwoFINAL(lines 139 153) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L448 ceAbstractionStarter]: For program point L150(line 150) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L448 ceAbstractionStarter]: For program point L150-1(line 150) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L444 ceAbstractionStarter]: At program point L148(line 148) the Hoare annotation is: (let ((.cse3 (select |#valid| |testTwo_~#f1~1.base|))) (and (exists ((|v_returnsField_~#c~0.base_4| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_returnsField_~#c~0.base_4|))) (let ((.cse1 (select .cse0 (_ bv0 32)))) (and (= (select |#valid| |v_returnsField_~#c~0.base_4|) (_ bv0 1)) (= (select .cse0 (_ bv4 32)) (_ bv0 32)) (= (select .cse0 (_ bv8 32)) (_ bv0 32)) (= .cse1 (_ bv0 32)) (= (let ((.cse2 (select (select |#memory_int| |testTwo_~#f1~1.base|) |testTwo_~#f1~1.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) (= (_ bv1 1) .cse3) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= .cse3 (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|))) [2018-11-28 13:12:53,425 INFO L448 ceAbstractionStarter]: For program point L148-1(line 148) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L448 ceAbstractionStarter]: For program point L150-3(line 150) no Hoare annotation was computed. [2018-11-28 13:12:53,425 INFO L444 ceAbstractionStarter]: At program point testTwoENTRY(lines 139 153) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#memory_int)| |#memory_int|)) [2018-11-28 13:12:53,425 INFO L444 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (and (= (_ bv1 1) (select |#valid| |testTwo_~#f2~1.base|)) (= (_ bv1 1) (select |#valid| |testTwo_~#f1~1.base|)) (= (_ bv0 32) |testTwo_~#f2~1.offset|) (not (= |testTwo_~#f1~1.base| |testTwo_~#f2~1.base|)) (= (_ bv0 32) |testTwo_~#f1~1.offset|)) [2018-11-28 13:12:53,426 INFO L448 ceAbstractionStarter]: For program point L142-1(line 142) no Hoare annotation was computed. [2018-11-28 13:12:53,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:12:53 BoogieIcfgContainer [2018-11-28 13:12:53,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:12:53,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:12:53,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:12:53,429 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:12:53,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:09:56" (3/4) ... [2018-11-28 13:12:53,433 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:12:53,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testOne [2018-11-28 13:12:53,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:12:53,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testThree [2018-11-28 13:12:53,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsStructure [2018-11-28 13:12:53,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure returnsField [2018-11-28 13:12:53,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:12:53,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure testTwo [2018-11-28 13:12:53,446 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2018-11-28 13:12:53,446 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 13:12:53,446 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 13:12:53,446 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:12:53,486 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f6ef939c-4ceb-4c23-83a1-a7bc308205f8/bin-2019/uautomizer/witness.graphml [2018-11-28 13:12:53,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:12:53,487 INFO L168 Benchmark]: Toolchain (without parser) took 177495.72 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 248.5 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:53,488 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:12:53,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.49 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:53,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:12:53,489 INFO L168 Benchmark]: Boogie Preprocessor took 36.85 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:12:53,489 INFO L168 Benchmark]: RCFGBuilder took 329.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:53,489 INFO L168 Benchmark]: TraceAbstraction took 176794.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -67.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:12:53,489 INFO L168 Benchmark]: Witness Printer took 58.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:12:53,490 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 245.49 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.90 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.85 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 329.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 176794.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -67.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 58.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 162]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 4 error locations. SAFE Result, 176.7s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 74.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 17 SDslu, 942 SDs, 0 SdLazy, 984 SolverSat, 132 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 49.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 260 SyntacticMatches, 14 SemanticMatches, 90 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 110.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 39 PreInvPairs, 43 NumberOfFragments, 483 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 100.4s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 316 ConstructedInterpolants, 74 QuantifiedInterpolants, 209127 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1388 ConjunctsInSsa, 288 ConjunctsInUnsatCore, 8 InterpolantComputations, 0 PerfectInterpolantSequences, 136/156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...