./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 814ad0e6afd77f926a64080aad9867e43891a945 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 814ad0e6afd77f926a64080aad9867e43891a945 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:59:03,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:59:03,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:59:03,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:59:03,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:59:03,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:59:03,966 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:59:03,967 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:59:03,968 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:59:03,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:59:03,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:59:03,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:59:03,969 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:59:03,970 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:59:03,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:59:03,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:59:03,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:59:03,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:59:03,973 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:59:03,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:59:03,974 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:59:03,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:59:03,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:59:03,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:59:03,976 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:59:03,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:59:03,977 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:59:03,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:59:03,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:59:03,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:59:03,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:59:03,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:59:03,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:59:03,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:59:03,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:59:03,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:59:03,982 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 14:59:03,990 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:59:03,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:59:03,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:59:03,991 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:59:03,994 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:59:03,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:59:03,995 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:59:03,996 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:59:03,996 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:59:03,997 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:59:03,997 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:59:03,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:59:03,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:59:03,998 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_bf492078-20fa-48f0-9bc7-6964faf885a3/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 -> 814ad0e6afd77f926a64080aad9867e43891a945 [2018-11-23 14:59:04,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:59:04,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:59:04,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:59:04,030 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:59:04,030 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:59:04,031 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/../../sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i [2018-11-23 14:59:04,067 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/5994b8f4a/d305e1e662c4435e9bef876dad9da2da/FLAG5c70d2bb6 [2018-11-23 14:59:04,532 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:59:04,532 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i [2018-11-23 14:59:04,544 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/5994b8f4a/d305e1e662c4435e9bef876dad9da2da/FLAG5c70d2bb6 [2018-11-23 14:59:05,053 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/5994b8f4a/d305e1e662c4435e9bef876dad9da2da [2018-11-23 14:59:05,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:59:05,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:59:05,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:59:05,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:59:05,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:59:05,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388bc786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05, skipping insertion in model container [2018-11-23 14:59:05,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:59:05,099 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:59:05,380 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:59:05,440 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:59:05,508 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:59:05,553 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:59:05,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05 WrapperNode [2018-11-23 14:59:05,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:59:05,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:59:05,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:59:05,554 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:59:05,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:59:05,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:59:05,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:59:05,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:59:05,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... [2018-11-23 14:59:05,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:59:05,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:59:05,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:59:05,648 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:59:05,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 [2018-11-23 14:59:05,684 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2018-11-23 14:59:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2018-11-23 14:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 14:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 14:59:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 14:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-11-23 14:59:05,685 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-11-23 14:59:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-11-23 14:59:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-11-23 14:59:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:59:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:59:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:59:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:59:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:59:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 14:59:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2018-11-23 14:59:05,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2018-11-23 14:59:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2018-11-23 14:59:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 14:59:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:59:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:59:08,479 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:59:08,479 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 14:59:08,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:08 BoogieIcfgContainer [2018-11-23 14:59:08,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:59:08,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:59:08,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:59:08,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:59:08,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:59:05" (1/3) ... [2018-11-23 14:59:08,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c6d273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:08, skipping insertion in model container [2018-11-23 14:59:08,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:05" (2/3) ... [2018-11-23 14:59:08,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c6d273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:08, skipping insertion in model container [2018-11-23 14:59:08,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:08" (3/3) ... [2018-11-23 14:59:08,486 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer_true-unreach-call.i [2018-11-23 14:59:08,492 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:59:08,497 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:59:08,507 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:59:08,527 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:59:08,528 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:59:08,528 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:59:08,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:59:08,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:59:08,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:59:08,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:59:08,529 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:59:08,529 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:59:08,542 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2018-11-23 14:59:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 14:59:08,548 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:08,549 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:08,550 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:08,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:08,554 INFO L82 PathProgramCache]: Analyzing trace with hash 649759861, now seen corresponding path program 1 times [2018-11-23 14:59:08,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:08,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:08,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:08,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:08,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:59:10,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:10,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:59:10,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:59:10,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:59:10,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:59:10,343 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2018-11-23 14:59:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:10,408 INFO L93 Difference]: Finished difference Result 212 states and 322 transitions. [2018-11-23 14:59:10,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:59:10,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-23 14:59:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:10,418 INFO L225 Difference]: With dead ends: 212 [2018-11-23 14:59:10,419 INFO L226 Difference]: Without dead ends: 104 [2018-11-23 14:59:10,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:59:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-23 14:59:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2018-11-23 14:59:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-23 14:59:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2018-11-23 14:59:10,458 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 18 [2018-11-23 14:59:10,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:10,459 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2018-11-23 14:59:10,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:59:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2018-11-23 14:59:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 14:59:10,461 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:10,461 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:10,461 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:10,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:10,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1255387306, now seen corresponding path program 1 times [2018-11-23 14:59:10,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:10,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:10,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:10,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:10,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:59:10,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:10,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:59:10,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:59:10,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:59:10,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:59:10,526 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand 3 states. [2018-11-23 14:59:10,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:10,560 INFO L93 Difference]: Finished difference Result 197 states and 288 transitions. [2018-11-23 14:59:10,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:59:10,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 14:59:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:10,562 INFO L225 Difference]: With dead ends: 197 [2018-11-23 14:59:10,563 INFO L226 Difference]: Without dead ends: 103 [2018-11-23 14:59:10,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:59:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-11-23 14:59:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2018-11-23 14:59:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-23 14:59:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2018-11-23 14:59:10,575 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 21 [2018-11-23 14:59:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:10,575 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2018-11-23 14:59:10,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:59:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2018-11-23 14:59:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 14:59:10,576 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:10,576 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:10,577 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:10,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:10,577 INFO L82 PathProgramCache]: Analyzing trace with hash -744986184, now seen corresponding path program 1 times [2018-11-23 14:59:10,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:10,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:10,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:10,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:10,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:59:12,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:12,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:59:12,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:59:12,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:59:12,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:59:12,246 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand 5 states. [2018-11-23 14:59:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:12,295 INFO L93 Difference]: Finished difference Result 189 states and 279 transitions. [2018-11-23 14:59:12,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:59:12,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-11-23 14:59:12,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:12,300 INFO L225 Difference]: With dead ends: 189 [2018-11-23 14:59:12,300 INFO L226 Difference]: Without dead ends: 181 [2018-11-23 14:59:12,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:59:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-23 14:59:12,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2018-11-23 14:59:12,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-23 14:59:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 268 transitions. [2018-11-23 14:59:12,320 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 268 transitions. Word has length 23 [2018-11-23 14:59:12,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:12,320 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 268 transitions. [2018-11-23 14:59:12,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:59:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 268 transitions. [2018-11-23 14:59:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-23 14:59:12,322 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:12,323 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:12,323 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:12,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:12,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1967376110, now seen corresponding path program 1 times [2018-11-23 14:59:12,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:12,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:12,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:12,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:12,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-23 14:59:14,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:14,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:59:14,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:59:14,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:59:14,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:59:14,163 INFO L87 Difference]: Start difference. First operand 180 states and 268 transitions. Second operand 4 states. [2018-11-23 14:59:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:16,259 INFO L93 Difference]: Finished difference Result 365 states and 553 transitions. [2018-11-23 14:59:16,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:59:16,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-11-23 14:59:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:16,262 INFO L225 Difference]: With dead ends: 365 [2018-11-23 14:59:16,262 INFO L226 Difference]: Without dead ends: 352 [2018-11-23 14:59:16,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:59:16,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-11-23 14:59:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 341. [2018-11-23 14:59:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-11-23 14:59:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 521 transitions. [2018-11-23 14:59:16,292 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 521 transitions. Word has length 79 [2018-11-23 14:59:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:16,292 INFO L480 AbstractCegarLoop]: Abstraction has 341 states and 521 transitions. [2018-11-23 14:59:16,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:59:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 521 transitions. [2018-11-23 14:59:16,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-23 14:59:16,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:16,296 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:16,296 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:16,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:16,296 INFO L82 PathProgramCache]: Analyzing trace with hash -677381746, now seen corresponding path program 1 times [2018-11-23 14:59:16,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:16,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:16,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:16,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:16,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-23 14:59:18,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:18,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:59:18,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:59:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:59:18,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:59:18,108 INFO L87 Difference]: Start difference. First operand 341 states and 521 transitions. Second operand 4 states. [2018-11-23 14:59:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:20,231 INFO L93 Difference]: Finished difference Result 590 states and 885 transitions. [2018-11-23 14:59:20,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:59:20,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-11-23 14:59:20,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:20,234 INFO L225 Difference]: With dead ends: 590 [2018-11-23 14:59:20,234 INFO L226 Difference]: Without dead ends: 265 [2018-11-23 14:59:20,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:59:20,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-11-23 14:59:20,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2018-11-23 14:59:20,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-11-23 14:59:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 371 transitions. [2018-11-23 14:59:20,252 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 371 transitions. Word has length 79 [2018-11-23 14:59:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:20,253 INFO L480 AbstractCegarLoop]: Abstraction has 257 states and 371 transitions. [2018-11-23 14:59:20,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:59:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 371 transitions. [2018-11-23 14:59:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-23 14:59:20,255 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:20,255 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:20,255 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:20,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash 616356910, now seen corresponding path program 1 times [2018-11-23 14:59:20,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:20,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:20,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:20,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:20,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-23 14:59:21,914 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:59:21,914 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:59:21,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:22,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-23 14:59:22,129 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:59:22,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2018-11-23 14:59:22,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:59:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:59:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:59:22,130 INFO L87 Difference]: Start difference. First operand 257 states and 371 transitions. Second operand 9 states. [2018-11-23 14:59:24,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:24,573 INFO L93 Difference]: Finished difference Result 557 states and 823 transitions. [2018-11-23 14:59:24,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:59:24,575 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2018-11-23 14:59:24,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:24,576 INFO L225 Difference]: With dead ends: 557 [2018-11-23 14:59:24,576 INFO L226 Difference]: Without dead ends: 307 [2018-11-23 14:59:24,577 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:59:24,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-11-23 14:59:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 277. [2018-11-23 14:59:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-11-23 14:59:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 411 transitions. [2018-11-23 14:59:24,596 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 411 transitions. Word has length 79 [2018-11-23 14:59:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:24,596 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 411 transitions. [2018-11-23 14:59:24,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:59:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 411 transitions. [2018-11-23 14:59:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-23 14:59:24,598 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:24,598 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:24,600 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:24,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:24,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1142420945, now seen corresponding path program 1 times [2018-11-23 14:59:24,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:24,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:24,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:24,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:24,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-23 14:59:26,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:59:26,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 14:59:26,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 14:59:26,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:59:26,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:59:26,202 INFO L87 Difference]: Start difference. First operand 277 states and 411 transitions. Second operand 8 states. [2018-11-23 14:59:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:28,536 INFO L93 Difference]: Finished difference Result 613 states and 939 transitions. [2018-11-23 14:59:28,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:59:28,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2018-11-23 14:59:28,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:28,539 INFO L225 Difference]: With dead ends: 613 [2018-11-23 14:59:28,539 INFO L226 Difference]: Without dead ends: 367 [2018-11-23 14:59:28,540 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:59:28,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-11-23 14:59:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 277. [2018-11-23 14:59:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-11-23 14:59:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 411 transitions. [2018-11-23 14:59:28,558 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 411 transitions. Word has length 81 [2018-11-23 14:59:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:28,558 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 411 transitions. [2018-11-23 14:59:28,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 14:59:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 411 transitions. [2018-11-23 14:59:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-23 14:59:28,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:28,560 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:28,560 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:28,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:28,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1519742352, now seen corresponding path program 1 times [2018-11-23 14:59:28,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:28,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:28,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:28,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:28,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-23 14:59:30,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:59:30,111 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 [2018-11-23 14:59:30,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:30,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-23 14:59:30,318 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:59:30,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-23 14:59:30,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:59:30,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:59:30,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:59:30,320 INFO L87 Difference]: Start difference. First operand 277 states and 411 transitions. Second operand 6 states. [2018-11-23 14:59:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:30,362 INFO L93 Difference]: Finished difference Result 549 states and 818 transitions. [2018-11-23 14:59:30,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:59:30,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2018-11-23 14:59:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:30,364 INFO L225 Difference]: With dead ends: 549 [2018-11-23 14:59:30,364 INFO L226 Difference]: Without dead ends: 279 [2018-11-23 14:59:30,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:59:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-11-23 14:59:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-11-23 14:59:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-11-23 14:59:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 413 transitions. [2018-11-23 14:59:30,378 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 413 transitions. Word has length 81 [2018-11-23 14:59:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:30,379 INFO L480 AbstractCegarLoop]: Abstraction has 279 states and 413 transitions. [2018-11-23 14:59:30,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:59:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 413 transitions. [2018-11-23 14:59:30,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-23 14:59:30,380 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:30,380 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:30,381 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:30,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:30,381 INFO L82 PathProgramCache]: Analyzing trace with hash -852812334, now seen corresponding path program 2 times [2018-11-23 14:59:30,381 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:30,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:30,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:30,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:59:30,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-23 14:59:31,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:59:31,959 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:59:31,988 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:59:44,103 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 14:59:44,103 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:59:44,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:59:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-23 14:59:44,165 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:59:44,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-23 14:59:44,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:59:44,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:59:44,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:59:44,166 INFO L87 Difference]: Start difference. First operand 279 states and 413 transitions. Second operand 5 states. [2018-11-23 14:59:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:59:44,195 INFO L93 Difference]: Finished difference Result 559 states and 828 transitions. [2018-11-23 14:59:44,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:59:44,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2018-11-23 14:59:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:59:44,198 INFO L225 Difference]: With dead ends: 559 [2018-11-23 14:59:44,198 INFO L226 Difference]: Without dead ends: 296 [2018-11-23 14:59:44,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:59:44,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-11-23 14:59:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 288. [2018-11-23 14:59:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-11-23 14:59:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 423 transitions. [2018-11-23 14:59:44,214 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 423 transitions. Word has length 83 [2018-11-23 14:59:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:59:44,214 INFO L480 AbstractCegarLoop]: Abstraction has 288 states and 423 transitions. [2018-11-23 14:59:44,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:59:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 423 transitions. [2018-11-23 14:59:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-23 14:59:44,216 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:59:44,216 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:59:44,216 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:59:44,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:59:44,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1820662229, now seen corresponding path program 3 times [2018-11-23 14:59:44,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:59:44,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:59:44,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:44,217 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:59:44,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:59:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:59:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-11-23 14:59:45,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:59:45,784 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 [2018-11-23 14:59:45,790 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 15:00:22,288 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 15:00:22,288 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:00:22,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:00:22,332 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 139 treesize of output 123 [2018-11-23 15:00:22,384 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 121 [2018-11-23 15:00:22,581 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-11-23 15:00:22,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,588 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 106 treesize of output 107 [2018-11-23 15:00:22,649 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,651 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,652 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,659 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,661 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,662 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 102 [2018-11-23 15:00:22,738 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,740 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,750 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,752 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,753 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 106 [2018-11-23 15:00:22,843 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,845 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,849 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,850 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 117 [2018-11-23 15:00:22,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,943 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,947 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,948 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,949 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,952 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,953 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,954 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:22,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 137 [2018-11-23 15:00:22,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 129 [2018-11-23 15:00:22,960 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,002 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,050 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,081 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,113 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,148 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,210 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,215 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,218 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,234 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 117 [2018-11-23 15:00:23,407 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-11-23 15:00:23,412 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,413 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,415 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,417 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,418 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,419 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 108 [2018-11-23 15:00:23,486 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,488 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,490 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,492 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,495 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 106 [2018-11-23 15:00:23,569 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,571 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,572 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,574 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 119 [2018-11-23 15:00:23,644 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,645 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,646 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,646 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,647 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,648 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,649 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,650 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,650 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,651 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 137 [2018-11-23 15:00:23,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 129 [2018-11-23 15:00:23,658 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,690 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,721 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,754 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,787 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:23,851 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,857 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,862 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,868 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:23,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 116 [2018-11-23 15:00:24,076 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-11-23 15:00:24,080 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,081 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,082 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,087 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,088 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,090 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,092 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,095 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,099 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 124 [2018-11-23 15:00:24,342 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2018-11-23 15:00:24,346 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,348 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,349 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,350 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,352 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,353 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,354 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 127 [2018-11-23 15:00:24,432 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,433 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,433 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,434 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,435 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,436 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,437 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,438 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,439 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,440 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,440 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 137 [2018-11-23 15:00:24,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 129 [2018-11-23 15:00:24,447 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:24,497 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:24,530 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:24,598 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,599 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,602 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,604 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,606 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,609 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,612 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,614 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,617 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,620 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,624 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 139 [2018-11-23 15:00:24,839 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2018-11-23 15:00:24,843 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,844 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,845 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,849 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,850 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,851 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 141 [2018-11-23 15:00:24,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 129 [2018-11-23 15:00:24,858 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:24,896 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:24,968 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,969 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,970 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,971 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,971 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,973 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,976 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,977 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,977 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,978 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,979 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,980 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,982 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:24,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 27 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 163 [2018-11-23 15:00:24,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 149 [2018-11-23 15:00:24,993 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:25,124 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,124 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,125 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,126 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,130 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,130 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,131 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,132 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,133 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 159 [2018-11-23 15:00:25,139 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-23 15:00:25,312 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 15:00:25,486 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:00:25,680 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 15:00:25,912 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,915 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,917 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,918 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,921 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,922 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 106 [2018-11-23 15:00:25,988 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,989 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,990 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,991 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,992 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,994 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,995 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,996 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:25,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 119 [2018-11-23 15:00:26,062 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,063 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,064 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,065 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,066 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,066 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,067 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,068 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,069 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,069 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:26,070 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 137 [2018-11-23 15:00:26,074 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 129 [2018-11-23 15:00:26,074 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:26,107 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:26,137 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:26,170 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:26,413 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 15:00:26,680 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-23 15:00:27,001 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 15:00:27,324 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 15:00:27,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 14 dim-0 vars, and 8 xjuncts. [2018-11-23 15:00:27,651 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 3 variables, input treesize:142, output treesize:1005 [2018-11-23 15:00:28,218 WARN L180 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 258 [2018-11-23 15:00:30,338 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 419 [2018-11-23 15:00:30,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,358 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,360 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,363 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,365 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,368 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,370 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,373 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,376 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,384 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,386 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,387 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,390 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,392 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,395 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,398 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,401 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,408 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,410 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,413 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,416 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,424 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 44 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 287 [2018-11-23 15:00:30,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 275 [2018-11-23 15:00:30,750 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 116 [2018-11-23 15:00:30,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,757 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,759 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,764 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,767 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,768 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,769 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,775 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:30,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:30,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:30,789 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:30,873 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:30,972 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:31,277 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,279 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,281 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,282 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,284 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,286 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,288 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,292 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,294 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,296 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,298 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,303 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,305 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,307 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,309 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,314 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:31,328 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 281 [2018-11-23 15:00:32,038 WARN L180 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 146 [2018-11-23 15:00:32,043 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,045 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,048 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,050 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,053 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,054 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,057 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,058 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 286 [2018-11-23 15:00:32,085 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:32,086 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:32,210 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:32,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,484 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,487 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,489 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,491 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,495 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,497 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,499 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,500 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,503 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,504 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,506 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,507 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,510 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,516 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,518 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,523 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:32,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 56 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 216 treesize of output 324 [2018-11-23 15:00:32,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 57 disjoint index pairs (out of 66 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 320 treesize of output 316 [2018-11-23 15:00:32,559 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-23 15:00:33,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,129 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,130 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,131 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,134 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,135 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,138 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,139 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,140 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:33,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 56 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 348 [2018-11-23 15:00:33,143 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:33,654 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 15:00:34,177 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:00:34,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 15:00:36,540 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,557 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,560 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,563 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,569 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,572 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,578 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,581 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,584 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,586 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,588 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,590 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,592 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,595 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 249 [2018-11-23 15:00:36,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 216 [2018-11-23 15:00:36,839 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-23 15:00:36,844 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,849 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,851 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,854 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,855 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,856 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:36,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:36,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:36,877 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:36,958 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:37,036 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:37,152 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:38,878 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,881 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,883 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,886 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,888 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,897 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,902 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,904 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,907 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,910 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,913 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,915 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:38,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 249 [2018-11-23 15:00:38,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 216 [2018-11-23 15:00:39,161 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-23 15:00:39,166 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,168 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,170 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,173 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,175 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,177 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,178 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,179 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,186 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:39,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:39,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:39,199 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:39,296 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:39,374 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:39,486 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:41,142 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,142 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,143 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,145 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,146 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,146 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,148 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 255 [2018-11-23 15:00:41,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 216 [2018-11-23 15:00:41,315 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-23 15:00:41,320 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,321 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,322 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,324 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,325 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,326 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,327 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,327 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,328 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,331 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:41,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:41,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:41,346 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:41,429 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:41,509 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:41,628 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:43,279 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,280 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,281 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,281 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,282 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,283 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,283 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,284 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,285 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,285 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,286 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,287 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,287 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,288 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 229 [2018-11-23 15:00:43,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 216 [2018-11-23 15:00:43,535 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-23 15:00:43,539 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,542 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,544 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,545 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,546 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,547 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,548 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,549 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,551 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,559 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:43,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:43,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:43,572 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:43,654 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:43,736 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:43,840 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:45,544 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,546 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,548 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,551 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,554 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,557 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,559 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,562 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,565 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,568 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,579 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 244 [2018-11-23 15:00:45,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 213 [2018-11-23 15:00:45,811 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-11-23 15:00:45,815 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,818 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,822 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,823 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,825 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,826 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,827 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,829 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,830 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,844 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:45,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:45,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 240 [2018-11-23 15:00:45,859 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:45,949 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:46,037 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:46,144 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:47,674 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,675 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,675 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,676 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,676 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,677 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,679 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,679 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,682 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,682 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 255 [2018-11-23 15:00:47,689 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 216 [2018-11-23 15:00:47,849 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-11-23 15:00:47,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,854 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,855 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,857 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,859 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,859 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,862 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,868 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:00:47,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 252 [2018-11-23 15:00:47,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 247 [2018-11-23 15:00:47,886 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 15:00:47,974 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:48,055 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:48,169 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:00:49,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 27 dim-0 vars, 7 dim-1 vars, End of recursive call: 41 dim-0 vars, and 11 xjuncts. [2018-11-23 15:00:49,621 INFO L202 ElimStorePlain]: Needed 35 recursive calls to eliminate 34 variables, input treesize:1176, output treesize:2728 [2018-11-23 15:01:01,838 WARN L180 SmtUtils]: Spent 12.15 s on a formula simplification. DAG size of input: 867 DAG size of output: 659 [2018-11-23 15:01:14,325 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 15:01:14,526 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:01:14,527 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 45 more [2018-11-23 15:01:14,529 INFO L168 Benchmark]: Toolchain (without parser) took 129473.84 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 532.2 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 367.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,529 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:01:14,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,530 INFO L168 Benchmark]: Boogie Preprocessor took 61.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,530 INFO L168 Benchmark]: RCFGBuilder took 2832.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.9 MB in the end (delta: 170.4 MB). Peak memory consumption was 170.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,531 INFO L168 Benchmark]: TraceAbstraction took 126048.16 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 394.8 MB). Free memory was 935.9 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. [2018-11-23 15:01:14,533 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 497.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.67 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2832.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.9 MB in the end (delta: 170.4 MB). Peak memory consumption was 170.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 126048.16 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 394.8 MB). Free memory was 935.9 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 15:01:15,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:01:15,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:01:15,732 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:01:15,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:01:15,733 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:01:15,734 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:01:15,735 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:01:15,736 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:01:15,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:01:15,737 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:01:15,737 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:01:15,739 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:01:15,739 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:01:15,740 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:01:15,741 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:01:15,741 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:01:15,743 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:01:15,744 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:01:15,745 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:01:15,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:01:15,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:01:15,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:01:15,749 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:01:15,749 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:01:15,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:01:15,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:01:15,752 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:01:15,752 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:01:15,753 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:01:15,753 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:01:15,754 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:01:15,754 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:01:15,754 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:01:15,755 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:01:15,756 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:01:15,756 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 15:01:15,767 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:01:15,767 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:01:15,768 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:01:15,768 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:01:15,768 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:01:15,768 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:01:15,769 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:01:15,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:01:15,770 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:01:15,770 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 15:01:15,770 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 15:01:15,770 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:01:15,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:01:15,772 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:01:15,772 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:01:15,772 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:01:15,772 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:01:15,772 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:01:15,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:01:15,773 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 15:01:15,774 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 15:01:15,774 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_bf492078-20fa-48f0-9bc7-6964faf885a3/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 -> 814ad0e6afd77f926a64080aad9867e43891a945 [2018-11-23 15:01:15,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:01:15,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:01:15,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:01:15,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:01:15,819 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:01:15,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/../../sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i [2018-11-23 15:01:15,865 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/d79fda754/f0533a65497c454d8247d4aa98769247/FLAG58a1cdb7c [2018-11-23 15:01:16,226 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:01:16,227 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/sv-benchmarks/c/seq-pthread/cs_fib_longer_true-unreach-call.i [2018-11-23 15:01:16,241 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/d79fda754/f0533a65497c454d8247d4aa98769247/FLAG58a1cdb7c [2018-11-23 15:01:16,252 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/data/d79fda754/f0533a65497c454d8247d4aa98769247 [2018-11-23 15:01:16,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:01:16,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:01:16,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:01:16,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:01:16,260 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:01:16,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2edc941c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16, skipping insertion in model container [2018-11-23 15:01:16,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:01:16,306 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:01:16,615 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:01:16,680 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:01:16,763 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:01:16,809 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:01:16,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16 WrapperNode [2018-11-23 15:01:16,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:01:16,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:01:16,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:01:16,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:01:16,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:01:16,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:01:16,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:01:16,847 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:01:16,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... [2018-11-23 15:01:16,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:01:16,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:01:16,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:01:16,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:01:16,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/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 [2018-11-23 15:01:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure main_thread [2018-11-23 15:01:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main_thread [2018-11-23 15:01:16,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-23 15:01:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:01:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 15:01:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:01:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:01:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-11-23 15:01:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-11-23 15:01:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-11-23 15:01:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:01:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:01:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2018-11-23 15:01:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 15:01:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2018-11-23 15:01:16,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 15:01:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2018-11-23 15:01:16,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2018-11-23 15:01:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:01:16,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:01:22,087 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:01:22,087 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 15:01:22,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:22 BoogieIcfgContainer [2018-11-23 15:01:22,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:01:22,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:01:22,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:01:22,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:01:22,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:01:16" (1/3) ... [2018-11-23 15:01:22,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef0d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:01:22, skipping insertion in model container [2018-11-23 15:01:22,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:16" (2/3) ... [2018-11-23 15:01:22,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef0d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:01:22, skipping insertion in model container [2018-11-23 15:01:22,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:22" (3/3) ... [2018-11-23 15:01:22,094 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer_true-unreach-call.i [2018-11-23 15:01:22,100 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:01:22,105 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:01:22,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:01:22,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:01:22,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:01:22,135 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:01:22,135 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:01:22,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:01:22,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:01:22,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:01:22,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:01:22,136 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:01:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2018-11-23 15:01:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 15:01:22,151 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:22,152 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:22,153 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:22,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:22,157 INFO L82 PathProgramCache]: Analyzing trace with hash 649759861, now seen corresponding path program 1 times [2018-11-23 15:01:22,161 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:22,162 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:22,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:22,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:01:22,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:22,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:22,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 15:01:22,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:01:22,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:01:22,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:22,574 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2018-11-23 15:01:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:22,712 INFO L93 Difference]: Finished difference Result 212 states and 322 transitions. [2018-11-23 15:01:22,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:01:22,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-23 15:01:22,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:22,727 INFO L225 Difference]: With dead ends: 212 [2018-11-23 15:01:22,727 INFO L226 Difference]: Without dead ends: 104 [2018-11-23 15:01:22,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:22,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-23 15:01:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2018-11-23 15:01:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-23 15:01:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2018-11-23 15:01:22,774 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 18 [2018-11-23 15:01:22,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:22,774 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2018-11-23 15:01:22,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:01:22,774 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2018-11-23 15:01:22,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 15:01:22,776 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:22,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:22,777 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:22,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:22,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1255387306, now seen corresponding path program 1 times [2018-11-23 15:01:22,778 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:22,778 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:22,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:23,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:01:23,141 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:23,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:23,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 15:01:23,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:01:23,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:01:23,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:23,145 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand 3 states. [2018-11-23 15:01:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:23,238 INFO L93 Difference]: Finished difference Result 197 states and 288 transitions. [2018-11-23 15:01:23,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:01:23,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 15:01:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:23,243 INFO L225 Difference]: With dead ends: 197 [2018-11-23 15:01:23,244 INFO L226 Difference]: Without dead ends: 103 [2018-11-23 15:01:23,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-11-23 15:01:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2018-11-23 15:01:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-23 15:01:23,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2018-11-23 15:01:23,253 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 21 [2018-11-23 15:01:23,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:23,253 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2018-11-23 15:01:23,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:01:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2018-11-23 15:01:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 15:01:23,254 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:23,254 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:23,255 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:23,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:23,255 INFO L82 PathProgramCache]: Analyzing trace with hash -744986184, now seen corresponding path program 1 times [2018-11-23 15:01:23,256 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:23,256 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:23,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:23,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:01:23,661 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:01:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:01:23,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:01:23,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-23 15:01:23,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:01:23,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:01:23,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:01:23,694 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand 6 states. [2018-11-23 15:01:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:23,898 INFO L93 Difference]: Finished difference Result 201 states and 293 transitions. [2018-11-23 15:01:23,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:01:23,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-23 15:01:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:23,900 INFO L225 Difference]: With dead ends: 201 [2018-11-23 15:01:23,900 INFO L226 Difference]: Without dead ends: 106 [2018-11-23 15:01:23,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:01:23,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-23 15:01:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-11-23 15:01:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-23 15:01:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 151 transitions. [2018-11-23 15:01:23,907 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 151 transitions. Word has length 23 [2018-11-23 15:01:23,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:23,907 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 151 transitions. [2018-11-23 15:01:23,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:01:23,907 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 151 transitions. [2018-11-23 15:01:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 15:01:23,908 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:23,908 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:23,909 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:23,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:23,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2086957828, now seen corresponding path program 2 times [2018-11-23 15:01:23,910 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:23,910 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:23,924 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 15:01:24,154 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 15:01:24,154 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:01:24,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 15:01:24,260 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:24,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:24,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 15:01:24,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:01:24,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:01:24,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:24,263 INFO L87 Difference]: Start difference. First operand 106 states and 151 transitions. Second operand 3 states. [2018-11-23 15:01:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:24,274 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2018-11-23 15:01:24,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:01:24,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-23 15:01:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:24,280 INFO L225 Difference]: With dead ends: 191 [2018-11-23 15:01:24,280 INFO L226 Difference]: Without dead ends: 106 [2018-11-23 15:01:24,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:01:24,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-23 15:01:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-11-23 15:01:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-23 15:01:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 150 transitions. [2018-11-23 15:01:24,290 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 150 transitions. Word has length 27 [2018-11-23 15:01:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:24,290 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 150 transitions. [2018-11-23 15:01:24,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:01:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2018-11-23 15:01:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 15:01:24,292 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:24,292 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 15:01:24,292 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:24,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:24,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2081995969, now seen corresponding path program 1 times [2018-11-23 15:01:24,293 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:24,293 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:24,318 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:01:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:24,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 15:01:24,661 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:24,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:24,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 15:01:24,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 15:01:24,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 15:01:24,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 15:01:24,664 INFO L87 Difference]: Start difference. First operand 106 states and 150 transitions. Second operand 8 states. [2018-11-23 15:01:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:27,378 INFO L93 Difference]: Finished difference Result 454 states and 743 transitions. [2018-11-23 15:01:27,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 15:01:27,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-11-23 15:01:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:27,382 INFO L225 Difference]: With dead ends: 454 [2018-11-23 15:01:27,382 INFO L226 Difference]: Without dead ends: 367 [2018-11-23 15:01:27,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-11-23 15:01:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-11-23 15:01:27,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 267. [2018-11-23 15:01:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2018-11-23 15:01:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 430 transitions. [2018-11-23 15:01:27,420 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 430 transitions. Word has length 47 [2018-11-23 15:01:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:27,420 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 430 transitions. [2018-11-23 15:01:27,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 15:01:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 430 transitions. [2018-11-23 15:01:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 15:01:27,423 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:27,423 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 15:01:27,423 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:27,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1863141251, now seen corresponding path program 1 times [2018-11-23 15:01:27,424 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:27,424 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:27,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:27,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 15:01:27,684 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:27,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:27,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 15:01:27,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:01:27,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:01:27,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:01:27,688 INFO L87 Difference]: Start difference. First operand 267 states and 430 transitions. Second operand 5 states. [2018-11-23 15:01:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:28,136 INFO L93 Difference]: Finished difference Result 533 states and 852 transitions. [2018-11-23 15:01:28,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:01:28,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-23 15:01:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:28,138 INFO L225 Difference]: With dead ends: 533 [2018-11-23 15:01:28,138 INFO L226 Difference]: Without dead ends: 285 [2018-11-23 15:01:28,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:01:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2018-11-23 15:01:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 271. [2018-11-23 15:01:28,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-11-23 15:01:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 383 transitions. [2018-11-23 15:01:28,157 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 383 transitions. Word has length 47 [2018-11-23 15:01:28,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:28,158 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 383 transitions. [2018-11-23 15:01:28,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:01:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 383 transitions. [2018-11-23 15:01:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 15:01:28,160 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:28,160 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 15:01:28,160 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:28,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:28,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1470114241, now seen corresponding path program 1 times [2018-11-23 15:01:28,161 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:28,161 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:28,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:28,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:28,519 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 15:01:28,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:01:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 15:01:28,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:01:28,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-23 15:01:28,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:01:28,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:01:28,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:01:28,554 INFO L87 Difference]: Start difference. First operand 271 states and 383 transitions. Second operand 6 states. [2018-11-23 15:01:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:28,881 INFO L93 Difference]: Finished difference Result 553 states and 781 transitions. [2018-11-23 15:01:28,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 15:01:28,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-23 15:01:28,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:28,884 INFO L225 Difference]: With dead ends: 553 [2018-11-23 15:01:28,884 INFO L226 Difference]: Without dead ends: 298 [2018-11-23 15:01:28,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-23 15:01:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-11-23 15:01:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2018-11-23 15:01:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-23 15:01:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 413 transitions. [2018-11-23 15:01:28,903 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 413 transitions. Word has length 47 [2018-11-23 15:01:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:28,903 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 413 transitions. [2018-11-23 15:01:28,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:01:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 413 transitions. [2018-11-23 15:01:28,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-23 15:01:28,904 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:28,905 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 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] [2018-11-23 15:01:28,905 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:28,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:28,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1005283962, now seen corresponding path program 2 times [2018-11-23 15:01:28,906 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:28,906 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:28,926 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 15:01:29,213 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 15:01:29,213 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:01:29,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-23 15:01:29,318 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:01:29,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:01:29,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 15:01:29,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:01:29,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:01:29,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:01:29,321 INFO L87 Difference]: Start difference. First operand 298 states and 413 transitions. Second operand 6 states. [2018-11-23 15:01:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:30,378 INFO L93 Difference]: Finished difference Result 309 states and 424 transitions. [2018-11-23 15:01:30,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 15:01:30,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2018-11-23 15:01:30,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:30,380 INFO L225 Difference]: With dead ends: 309 [2018-11-23 15:01:30,380 INFO L226 Difference]: Without dead ends: 299 [2018-11-23 15:01:30,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 15:01:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-11-23 15:01:30,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 298. [2018-11-23 15:01:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-23 15:01:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 410 transitions. [2018-11-23 15:01:30,400 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 410 transitions. Word has length 74 [2018-11-23 15:01:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:30,400 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 410 transitions. [2018-11-23 15:01:30,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:01:30,400 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 410 transitions. [2018-11-23 15:01:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-23 15:01:30,402 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:30,402 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:30,403 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:30,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:30,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1120246192, now seen corresponding path program 1 times [2018-11-23 15:01:30,404 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:30,404 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:30,417 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:01:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:30,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2018-11-23 15:01:30,698 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:01:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-11-23 15:01:30,855 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:01:30,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2018-11-23 15:01:30,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 15:01:30,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 15:01:30,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:01:30,857 INFO L87 Difference]: Start difference. First operand 298 states and 410 transitions. Second operand 10 states. [2018-11-23 15:01:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:35,600 INFO L93 Difference]: Finished difference Result 857 states and 1230 transitions. [2018-11-23 15:01:35,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 15:01:35,601 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2018-11-23 15:01:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:35,603 INFO L225 Difference]: With dead ends: 857 [2018-11-23 15:01:35,603 INFO L226 Difference]: Without dead ends: 605 [2018-11-23 15:01:35,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2018-11-23 15:01:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-11-23 15:01:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 557. [2018-11-23 15:01:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2018-11-23 15:01:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 766 transitions. [2018-11-23 15:01:35,638 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 766 transitions. Word has length 130 [2018-11-23 15:01:35,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:35,638 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 766 transitions. [2018-11-23 15:01:35,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 15:01:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 766 transitions. [2018-11-23 15:01:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-23 15:01:35,640 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:35,640 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:35,640 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:35,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:35,641 INFO L82 PathProgramCache]: Analyzing trace with hash -178289648, now seen corresponding path program 1 times [2018-11-23 15:01:35,642 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:35,642 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:35,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:01:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:01:36,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-23 15:01:36,232 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:01:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-23 15:01:36,374 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:01:36,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-23 15:01:36,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 15:01:36,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 15:01:36,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-23 15:01:36,375 INFO L87 Difference]: Start difference. First operand 557 states and 766 transitions. Second operand 12 states. [2018-11-23 15:01:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:38,581 INFO L93 Difference]: Finished difference Result 1098 states and 1517 transitions. [2018-11-23 15:01:38,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 15:01:38,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2018-11-23 15:01:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:38,586 INFO L225 Difference]: With dead ends: 1098 [2018-11-23 15:01:38,586 INFO L226 Difference]: Without dead ends: 584 [2018-11-23 15:01:38,588 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-11-23 15:01:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2018-11-23 15:01:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2018-11-23 15:01:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2018-11-23 15:01:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 796 transitions. [2018-11-23 15:01:38,624 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 796 transitions. Word has length 130 [2018-11-23 15:01:38,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:38,624 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 796 transitions. [2018-11-23 15:01:38,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 15:01:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 796 transitions. [2018-11-23 15:01:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-23 15:01:38,626 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:38,626 INFO L402 BasicCegarLoop]: trace histogram [21, 21, 7, 7, 7, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:38,626 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:38,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:38,627 INFO L82 PathProgramCache]: Analyzing trace with hash 374830775, now seen corresponding path program 2 times [2018-11-23 15:01:38,628 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:38,628 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:38,650 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 15:01:45,532 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 15:01:45,532 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:01:45,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:01:45,698 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 12 treesize of output 15 [2018-11-23 15:01:45,703 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 15 treesize of output 17 [2018-11-23 15:01:45,706 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 17 treesize of output 16 [2018-11-23 15:01:45,706 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,724 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,731 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:12, output treesize:16 [2018-11-23 15:01:45,746 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:01:45,747 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 22 [2018-11-23 15:01:45,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,753 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:16 [2018-11-23 15:01:45,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:01:45,762 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 16 treesize of output 4 [2018-11-23 15:01:45,762 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,765 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2018-11-23 15:01:45,785 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:01:45,786 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 16 treesize of output 4 [2018-11-23 15:01:45,786 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,787 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:1 [2018-11-23 15:01:45,794 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 15:01:45,795 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,795 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:1 [2018-11-23 15:01:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-11-23 15:01:45,821 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:01:45,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 15:01:45,843 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,844 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-11-23 15:01:45,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2018-11-23 15:01:45,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:01:45,912 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:12 [2018-11-23 15:01:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-11-23 15:01:45,953 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:01:45,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-11-23 15:01:45,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 15:01:45,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 15:01:45,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 15:01:45,954 INFO L87 Difference]: Start difference. First operand 584 states and 796 transitions. Second operand 8 states. [2018-11-23 15:01:51,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:01:51,702 INFO L93 Difference]: Finished difference Result 1114 states and 1504 transitions. [2018-11-23 15:01:51,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 15:01:51,703 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2018-11-23 15:01:51,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:01:51,705 INFO L225 Difference]: With dead ends: 1114 [2018-11-23 15:01:51,705 INFO L226 Difference]: Without dead ends: 545 [2018-11-23 15:01:51,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-11-23 15:01:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2018-11-23 15:01:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 510. [2018-11-23 15:01:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2018-11-23 15:01:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 691 transitions. [2018-11-23 15:01:51,728 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 691 transitions. Word has length 157 [2018-11-23 15:01:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:01:51,728 INFO L480 AbstractCegarLoop]: Abstraction has 510 states and 691 transitions. [2018-11-23 15:01:51,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 15:01:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 691 transitions. [2018-11-23 15:01:51,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-23 15:01:51,730 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:01:51,730 INFO L402 BasicCegarLoop]: trace histogram [21, 21, 7, 7, 7, 4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:01:51,730 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:01:51,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:01:51,730 INFO L82 PathProgramCache]: Analyzing trace with hash 612811314, now seen corresponding path program 1 times [2018-11-23 15:01:51,731 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 15:01:51,731 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf492078-20fa-48f0-9bc7-6964faf885a3/bin-2019/uautomizer/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 15:01:51,743 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:02:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:02:06,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:02:06,159 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 26 treesize of output 25 [2018-11-23 15:02:06,199 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,219 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2018-11-23 15:02:06,328 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2018-11-23 15:02:06,339 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,340 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,351 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 17 [2018-11-23 15:02:06,353 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,384 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,388 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:06,388 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 15:02:06,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 15:02:06,389 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,420 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,427 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,439 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:35, output treesize:22 [2018-11-23 15:02:06,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 105 [2018-11-23 15:02:06,695 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 12 treesize of output 11 [2018-11-23 15:02:06,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,787 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 104 treesize of output 72 [2018-11-23 15:02:06,795 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 12 treesize of output 11 [2018-11-23 15:02:06,795 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:06,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-23 15:02:06,894 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 16 treesize of output 15 [2018-11-23 15:02:06,894 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:07,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 50 treesize of output 104 [2018-11-23 15:02:07,112 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 15:02:07,133 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 71 treesize of output 70 [2018-11-23 15:02:07,134 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:08,657 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 2 case distinctions, treesize of input 48 treesize of output 56 [2018-11-23 15:02:08,658 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:09,086 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 2 case distinctions, treesize of input 48 treesize of output 60 [2018-11-23 15:02:09,086 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:09,937 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 2 case distinctions, treesize of input 48 treesize of output 56 [2018-11-23 15:02:09,938 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:10,060 INFO L267 ElimStorePlain]: Start of recursive call 8: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:02:10,176 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:02:10,283 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:02:10,387 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:02:10,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 15:02:10,538 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 1 variables, input treesize:215, output treesize:283 [2018-11-23 15:02:10,849 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-23 15:02:11,804 WARN L180 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2018-11-23 15:02:12,328 WARN L180 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-11-23 15:02:13,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 77 [2018-11-23 15:02:13,414 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:13,417 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 79 [2018-11-23 15:02:13,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:13,564 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:13,566 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:13,603 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 2 case distinctions, treesize of input 51 treesize of output 82 [2018-11-23 15:02:13,603 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:13,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 15:02:13,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 13 dim-0 vars, and 2 xjuncts. [2018-11-23 15:02:13,821 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:70, output treesize:131 [2018-11-23 15:02:17,352 WARN L180 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 84 [2018-11-23 15:02:17,373 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 69 [2018-11-23 15:02:17,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:17,384 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 21 treesize of output 12 [2018-11-23 15:02:17,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:17,412 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 13 treesize of output 5 [2018-11-23 15:02:17,413 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:17,427 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 6 treesize of output 1 [2018-11-23 15:02:17,427 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:17,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:02:17,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 89 [2018-11-23 15:02:17,610 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:17,614 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 69 treesize of output 61 [2018-11-23 15:02:17,614 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:18,273 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 65 treesize of output 58 [2018-11-23 15:02:18,273 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:18,861 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:18,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 41 treesize of output 33 [2018-11-23 15:02:18,863 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:19,415 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:19,418 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:19,419 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:19,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:19,432 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:19,438 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 1 case distinctions, treesize of input 57 treesize of output 79 [2018-11-23 15:02:19,439 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:20,041 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 63 treesize of output 57 [2018-11-23 15:02:20,041 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:20,572 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:20,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:20,578 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:20,610 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 2 case distinctions, treesize of input 61 treesize of output 85 [2018-11-23 15:02:20,611 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-11-23 15:02:21,325 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:21,329 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 57 treesize of output 49 [2018-11-23 15:02:21,329 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:21,981 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 65 treesize of output 59 [2018-11-23 15:02:21,982 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:22,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:22,588 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:22,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 67 [2018-11-23 15:02:22,605 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-23 15:02:23,261 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 40 treesize of output 33 [2018-11-23 15:02:23,261 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:23,265 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 38 treesize of output 31 [2018-11-23 15:02:23,265 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:23,767 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 45 treesize of output 38 [2018-11-23 15:02:23,768 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:23,772 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 39 treesize of output 32 [2018-11-23 15:02:23,772 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:23,775 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 41 treesize of output 34 [2018-11-23 15:02:23,775 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:23,779 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 43 treesize of output 36 [2018-11-23 15:02:23,779 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:24,267 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 37 treesize of output 30 [2018-11-23 15:02:24,267 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:24,652 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 65 treesize of output 59 [2018-11-23 15:02:24,652 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:25,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:25,055 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 59 treesize of output 51 [2018-11-23 15:02:25,056 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:25,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:25,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 32 [2018-11-23 15:02:25,452 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:25,998 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 54 treesize of output 42 [2018-11-23 15:02:25,998 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:26,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 15:02:26,236 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 42 treesize of output 34 [2018-11-23 15:02:26,237 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 15:02:26,338 INFO L267 ElimStorePlain]: Start of recursive call 6: 19 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 15:02:26,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 15 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 15:02:26,385 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 17 variables, input treesize:137, output treesize:5 [2018-11-23 15:02:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-23 15:02:26,554 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 15:02:26,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:02:26,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-23 15:02:26,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 15:02:26,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 15:02:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:02:26,565 INFO L87 Difference]: Start difference. First operand 510 states and 691 transitions. Second operand 15 states. [2018-11-23 15:02:39,406 WARN L180 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2018-11-23 15:02:44,388 WARN L180 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 115 DAG size of output: 115 [2018-11-23 15:02:49,415 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2018-11-23 15:02:57,847 WARN L180 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 113 DAG size of output: 113 [2018-11-23 15:03:01,875 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2018-11-23 15:03:23,593 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 115 DAG size of output: 115 [2018-11-23 15:03:54,197 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 119 DAG size of output: 119 [2018-11-23 15:03:56,558 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 15:03:56,559 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:651) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:255) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:270) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-11-23 15:03:56,561 INFO L168 Benchmark]: Toolchain (without parser) took 160305.91 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 944.4 MB in the beginning and 1.0 GB in the end (delta: -68.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,562 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:03:56,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.87 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,562 INFO L168 Benchmark]: Boogie Preprocessor took 71.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,563 INFO L168 Benchmark]: RCFGBuilder took 5169.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.1 MB in the end (delta: 182.7 MB). Peak memory consumption was 182.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,563 INFO L168 Benchmark]: TraceAbstraction took 154472.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 899.1 MB in the beginning and 1.0 GB in the end (delta: -113.6 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2018-11-23 15:03:56,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 552.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.87 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5169.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.1 MB in the end (delta: 182.7 MB). Peak memory consumption was 182.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 154472.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 899.1 MB in the beginning and 1.0 GB in the end (delta: -113.6 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...