./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/conda.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/conda.c -s /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 26c6751f6db6a86a1f7352dea53cb896a404f528 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/conda.c -s /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 26c6751f6db6a86a1f7352dea53cb896a404f528 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: |#memory_int| input size 379 context size 379 output size 379 --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:03:54,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:03:54,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:03:54,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:03:54,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:03:54,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:03:54,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:03:54,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:03:54,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:03:54,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:03:54,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:03:54,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:03:54,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:03:54,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:03:54,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:03:54,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:03:54,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:03:54,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:03:54,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:03:54,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:03:54,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:03:54,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:03:54,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:03:54,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:03:54,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:03:54,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:03:54,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:03:54,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:03:54,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:03:54,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:03:54,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:03:54,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:03:54,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:03:54,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:03:54,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:03:54,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:03:54,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:03:54,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:03:54,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:03:54,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:03:54,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:03:54,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:03:54,471 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:03:54,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:03:54,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:03:54,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:03:54,477 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:03:54,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:03:54,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:03:54,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:03:54,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:03:54,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:03:54,479 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:03:54,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:03:54,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:03:54,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:03:54,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:03:54,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:03:54,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:03:54,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:03:54,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:03:54,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:03:54,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:03:54,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:03:54,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:03:54,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 -> 26c6751f6db6a86a1f7352dea53cb896a404f528 [2019-11-20 05:03:54,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:03:54,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:03:54,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:03:54,624 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:03:54,624 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:03:54,624 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/../../sv-benchmarks/c/array-fpi/conda.c [2019-11-20 05:03:54,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/eef163720/5f56c903f66c4fe1bb99881f43c9d8e9/FLAG61e22a0c0 [2019-11-20 05:03:55,025 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:03:55,026 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/sv-benchmarks/c/array-fpi/conda.c [2019-11-20 05:03:55,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/eef163720/5f56c903f66c4fe1bb99881f43c9d8e9/FLAG61e22a0c0 [2019-11-20 05:03:55,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/eef163720/5f56c903f66c4fe1bb99881f43c9d8e9 [2019-11-20 05:03:55,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:03:55,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:03:55,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:03:55,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:03:55,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:03:55,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e8fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55, skipping insertion in model container [2019-11-20 05:03:55,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,472 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:03:55,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:03:55,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:03:55,697 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:03:55,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:03:55,744 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:03:55,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55 WrapperNode [2019-11-20 05:03:55,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:03:55,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:03:55,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:03:55,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:03:55,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:03:55,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:03:55,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:03:55,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:03:55,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... [2019-11-20 05:03:55,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:03:55,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:03:55,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:03:55,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:03:55,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 [2019-11-20 05:03:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:03:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:03:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 05:03:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:03:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:03:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:03:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:03:56,141 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:03:56,141 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 05:03:56,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:03:56 BoogieIcfgContainer [2019-11-20 05:03:56,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:03:56,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:03:56,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:03:56,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:03:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:03:55" (1/3) ... [2019-11-20 05:03:56,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7643dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:03:56, skipping insertion in model container [2019-11-20 05:03:56,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:03:55" (2/3) ... [2019-11-20 05:03:56,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7643dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:03:56, skipping insertion in model container [2019-11-20 05:03:56,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:03:56" (3/3) ... [2019-11-20 05:03:56,149 INFO L109 eAbstractionObserver]: Analyzing ICFG conda.c [2019-11-20 05:03:56,158 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:03:56,164 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:03:56,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:03:56,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:03:56,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:03:56,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:03:56,213 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:03:56,213 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:03:56,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:03:56,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:03:56,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:03:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 05:03:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:03:56,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:03:56,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:03:56,250 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:03:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:03:56,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-20 05:03:56,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:03:56,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875947221] [2019-11-20 05:03:56,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:03:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:03:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:03:56,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875947221] [2019-11-20 05:03:56,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:03:56,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:03:56,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554353908] [2019-11-20 05:03:56,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:03:56,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:03:56,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:03:56,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:03:56,435 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 05:03:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:03:56,462 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-20 05:03:56,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:03:56,463 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 05:03:56,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:03:56,475 INFO L225 Difference]: With dead ends: 35 [2019-11-20 05:03:56,475 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 05:03:56,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:03:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 05:03:56,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 05:03:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 05:03:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 05:03:56,527 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-20 05:03:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:03:56,528 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 05:03:56,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:03:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-20 05:03:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:03:56,529 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:03:56,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:03:56,530 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:03:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:03:56,531 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-20 05:03:56,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:03:56,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490417013] [2019-11-20 05:03:56,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:03:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:03:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:03:56,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490417013] [2019-11-20 05:03:56,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:03:56,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:03:56,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118073001] [2019-11-20 05:03:56,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:03:56,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:03:56,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:03:56,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:03:56,667 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-20 05:03:56,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:03:56,713 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-20 05:03:56,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:03:56,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-20 05:03:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:03:56,715 INFO L225 Difference]: With dead ends: 29 [2019-11-20 05:03:56,715 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 05:03:56,716 INFO L630 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 [2019-11-20 05:03:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 05:03:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 05:03:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 05:03:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 05:03:56,720 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-20 05:03:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:03:56,721 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 05:03:56,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:03:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 05:03:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 05:03:56,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:03:56,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:03:56,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:03:56,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:03:56,723 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-20 05:03:56,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:03:56,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706403702] [2019-11-20 05:03:56,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:03:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:03:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:03:56,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706403702] [2019-11-20 05:03:56,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:03:56,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 05:03:56,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663740971] [2019-11-20 05:03:56,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:03:56,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:03:56,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:03:56,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:03:56,793 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-20 05:03:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:03:56,879 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-20 05:03:56,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:03:56,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 05:03:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:03:56,881 INFO L225 Difference]: With dead ends: 30 [2019-11-20 05:03:56,881 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 05:03:56,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:03:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 05:03:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-11-20 05:03:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 05:03:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-20 05:03:56,886 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-20 05:03:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:03:56,886 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 05:03:56,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:03:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-20 05:03:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 05:03:56,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:03:56,887 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:03:56,888 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:03:56,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:03:56,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-20 05:03:56,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:03:56,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774496071] [2019-11-20 05:03:56,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:03:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:03:57,472 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-11-20 05:03:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:03:57,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774496071] [2019-11-20 05:03:57,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383602468] [2019-11-20 05:03:57,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:03:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:03:57,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-20 05:03:57,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:03:57,949 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:03:57,950 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:03:57,963 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:03:57,982 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:03:57,982 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:03:57,995 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:03:57,996 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:03:57,996 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-20 05:03:58,050 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:03:58,051 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:03:58,075 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:03:58,075 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:03:58,076 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 05:03:58,451 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:03:58,452 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 79 [2019-11-20 05:03:58,454 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:03:58,496 INFO L567 ElimStorePlain]: treesize reduction 59, result has 35.2 percent of original size [2019-11-20 05:03:58,497 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:03:58,498 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:27 [2019-11-20 05:03:58,619 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-11-20 05:03:58,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:03:58,633 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:03:58,634 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:03:58,635 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:29 [2019-11-20 05:03:58,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:03:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:03:58,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:03:58,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-11-20 05:03:58,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197660578] [2019-11-20 05:03:58,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 05:03:58,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:03:58,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 05:03:58,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-11-20 05:03:58,762 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 22 states. [2019-11-20 05:03:59,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:03:59,763 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2019-11-20 05:03:59,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 05:03:59,763 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 18 [2019-11-20 05:03:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:03:59,765 INFO L225 Difference]: With dead ends: 50 [2019-11-20 05:03:59,765 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 05:03:59,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2019-11-20 05:03:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 05:03:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2019-11-20 05:03:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 05:03:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-20 05:03:59,773 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-20 05:03:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:03:59,774 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-20 05:03:59,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 05:03:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-20 05:03:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:03:59,775 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:03:59,775 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:03:59,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:03:59,977 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:03:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:03:59,977 INFO L82 PathProgramCache]: Analyzing trace with hash -780577906, now seen corresponding path program 2 times [2019-11-20 05:03:59,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:03:59,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643963055] [2019-11-20 05:03:59,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:04:00,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643963055] [2019-11-20 05:04:00,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302539607] [2019-11-20 05:04:00,067 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:00,129 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:04:00,129 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:00,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 05:04:00,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:04:00,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:00,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-20 05:04:00,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933674618] [2019-11-20 05:04:00,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 05:04:00,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:00,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 05:04:00,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-20 05:04:00,168 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 10 states. [2019-11-20 05:04:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:00,289 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2019-11-20 05:04:00,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 05:04:00,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-20 05:04:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:00,290 INFO L225 Difference]: With dead ends: 62 [2019-11-20 05:04:00,290 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 05:04:00,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-20 05:04:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 05:04:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 05:04:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 05:04:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-20 05:04:00,297 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 20 [2019-11-20 05:04:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:00,297 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-20 05:04:00,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 05:04:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-20 05:04:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:04:00,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:00,298 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:00,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:00,502 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:00,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:00,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1936976406, now seen corresponding path program 3 times [2019-11-20 05:04:00,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:00,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74027425] [2019-11-20 05:04:00,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:00,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:04:00,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74027425] [2019-11-20 05:04:00,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356481151] [2019-11-20 05:04:00,567 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:00,614 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-20 05:04:00,614 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:00,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 05:04:00,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:04:00,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:00,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-20 05:04:00,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117388951] [2019-11-20 05:04:00,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 05:04:00,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:00,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 05:04:00,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-20 05:04:00,653 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 10 states. [2019-11-20 05:04:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:00,785 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2019-11-20 05:04:00,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 05:04:00,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-20 05:04:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:00,786 INFO L225 Difference]: With dead ends: 37 [2019-11-20 05:04:00,786 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 05:04:00,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2019-11-20 05:04:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 05:04:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-11-20 05:04:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 05:04:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-11-20 05:04:00,792 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2019-11-20 05:04:00,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:00,792 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-11-20 05:04:00,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 05:04:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-11-20 05:04:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 05:04:00,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:00,794 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:00,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:00,994 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:00,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:00,995 INFO L82 PathProgramCache]: Analyzing trace with hash 387064011, now seen corresponding path program 4 times [2019-11-20 05:04:00,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:00,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862027340] [2019-11-20 05:04:00,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:01,891 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-11-20 05:04:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:04:02,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862027340] [2019-11-20 05:04:02,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845940281] [2019-11-20 05:04:02,451 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:02,503 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:04:02,503 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:02,505 WARN L253 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-20 05:04:02,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:02,521 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:04:02,521 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,545 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:02,553 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:04:02,553 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,565 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:02,566 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,566 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 05:04:02,621 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:04:02,622 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,637 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:02,637 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,637 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 05:04:02,756 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:02,756 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2019-11-20 05:04:02,757 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:02,791 INFO L567 ElimStorePlain]: treesize reduction 36, result has 57.1 percent of original size [2019-11-20 05:04:02,792 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:02,792 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2019-11-20 05:04:03,137 INFO L343 Elim1Store]: treesize reduction 16, result has 89.1 percent of original size [2019-11-20 05:04:03,138 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 163 [2019-11-20 05:04:03,139 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:03,195 INFO L567 ElimStorePlain]: treesize reduction 116, result has 43.1 percent of original size [2019-11-20 05:04:03,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,199 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:03,199 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:88 [2019-11-20 05:04:03,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:03,421 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-11-20 05:04:03,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:03,594 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:04:03,598 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 37 [2019-11-20 05:04:03,599 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:03,621 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:03,622 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:03,622 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:44 [2019-11-20 05:04:03,750 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:04:03,753 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:03,755 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2019-11-20 05:04:03,756 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:03,781 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:03,782 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:03,782 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:59 [2019-11-20 05:04:03,946 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:04:03,947 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2019-11-20 05:04:03,948 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:03,959 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:03,960 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:03,960 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:39 [2019-11-20 05:04:04,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:04:04,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:04,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2019-11-20 05:04:04,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775376859] [2019-11-20 05:04:04,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-20 05:04:04,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:04,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-20 05:04:04,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 05:04:04,086 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 39 states. [2019-11-20 05:04:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:05,886 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2019-11-20 05:04:05,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-20 05:04:05,886 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 25 [2019-11-20 05:04:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:05,887 INFO L225 Difference]: With dead ends: 71 [2019-11-20 05:04:05,887 INFO L226 Difference]: Without dead ends: 54 [2019-11-20 05:04:05,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=466, Invalid=3074, Unknown=0, NotChecked=0, Total=3540 [2019-11-20 05:04:05,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-20 05:04:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 40. [2019-11-20 05:04:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 05:04:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-11-20 05:04:05,897 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 25 [2019-11-20 05:04:05,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:05,898 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-11-20 05:04:05,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-20 05:04:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-11-20 05:04:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 05:04:05,899 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:05,899 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:06,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:06,100 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:06,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1640406643, now seen corresponding path program 5 times [2019-11-20 05:04:06,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:06,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941440090] [2019-11-20 05:04:06,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 05:04:06,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941440090] [2019-11-20 05:04:06,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977778219] [2019-11-20 05:04:06,193 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:06,255 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-11-20 05:04:06,255 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:06,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 05:04:06,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 05:04:06,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:06,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-11-20 05:04:06,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100691133] [2019-11-20 05:04:06,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 05:04:06,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:06,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 05:04:06,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:04:06,312 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 13 states. [2019-11-20 05:04:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:06,482 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2019-11-20 05:04:06,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 05:04:06,483 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-20 05:04:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:06,484 INFO L225 Difference]: With dead ends: 81 [2019-11-20 05:04:06,484 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 05:04:06,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-11-20 05:04:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 05:04:06,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2019-11-20 05:04:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-20 05:04:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2019-11-20 05:04:06,491 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 27 [2019-11-20 05:04:06,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:06,491 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-11-20 05:04:06,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 05:04:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-11-20 05:04:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 05:04:06,492 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:06,492 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:06,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:06,697 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:06,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:06,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1494406189, now seen corresponding path program 6 times [2019-11-20 05:04:06,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:06,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029996896] [2019-11-20 05:04:06,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:04:06,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029996896] [2019-11-20 05:04:06,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828479015] [2019-11-20 05:04:06,781 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:06,825 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2019-11-20 05:04:06,825 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:06,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 05:04:06,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 05:04:06,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:06,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-11-20 05:04:06,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94514910] [2019-11-20 05:04:06,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 05:04:06,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:06,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 05:04:06,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:04:06,877 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 13 states. [2019-11-20 05:04:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:07,093 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-11-20 05:04:07,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 05:04:07,094 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-20 05:04:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:07,094 INFO L225 Difference]: With dead ends: 46 [2019-11-20 05:04:07,094 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 05:04:07,095 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2019-11-20 05:04:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 05:04:07,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2019-11-20 05:04:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 05:04:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-11-20 05:04:07,100 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 27 [2019-11-20 05:04:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:07,100 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-11-20 05:04:07,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 05:04:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-20 05:04:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 05:04:07,101 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:07,101 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:07,305 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:07,306 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash 669104364, now seen corresponding path program 7 times [2019-11-20 05:04:07,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:07,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352833506] [2019-11-20 05:04:07,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:08,692 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-11-20 05:04:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:04:09,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352833506] [2019-11-20 05:04:09,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598757769] [2019-11-20 05:04:09,413 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:09,455 WARN L253 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-20 05:04:09,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:09,469 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:04:09,469 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,479 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:09,482 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:04:09,483 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,490 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:09,490 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,490 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 05:04:09,523 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:04:09,524 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,534 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:09,534 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,534 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 05:04:09,610 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:09,611 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2019-11-20 05:04:09,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,633 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 05:04:09,633 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,633 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 05:04:09,740 INFO L343 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2019-11-20 05:04:09,740 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 98 [2019-11-20 05:04:09,740 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,774 INFO L567 ElimStorePlain]: treesize reduction 54, result has 47.1 percent of original size [2019-11-20 05:04:09,775 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:09,775 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 05:04:10,100 INFO L343 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2019-11-20 05:04:10,100 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 191 [2019-11-20 05:04:10,102 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,140 INFO L567 ElimStorePlain]: treesize reduction 95, result has 32.6 percent of original size [2019-11-20 05:04:10,140 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,140 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:46 [2019-11-20 05:04:10,385 INFO L343 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2019-11-20 05:04:10,385 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 191 [2019-11-20 05:04:10,386 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,450 INFO L567 ElimStorePlain]: treesize reduction 187, result has 20.4 percent of original size [2019-11-20 05:04:10,450 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,450 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:48 [2019-11-20 05:04:10,633 INFO L343 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2019-11-20 05:04:10,634 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 47 [2019-11-20 05:04:10,634 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:10,645 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,645 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:43 [2019-11-20 05:04:10,784 INFO L343 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2019-11-20 05:04:10,784 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 98 [2019-11-20 05:04:10,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,813 INFO L567 ElimStorePlain]: treesize reduction 72, result has 44.6 percent of original size [2019-11-20 05:04:10,813 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,813 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:58 [2019-11-20 05:04:10,953 INFO L343 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2019-11-20 05:04:10,954 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 98 [2019-11-20 05:04:10,954 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,983 INFO L567 ElimStorePlain]: treesize reduction 78, result has 45.5 percent of original size [2019-11-20 05:04:10,984 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:10,984 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:65 [2019-11-20 05:04:11,125 INFO L343 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2019-11-20 05:04:11,125 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 51 [2019-11-20 05:04:11,126 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:11,147 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:11,147 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:11,148 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:82, output treesize:43 [2019-11-20 05:04:11,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:04:11,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:11,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 26] total 52 [2019-11-20 05:04:11,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947929332] [2019-11-20 05:04:11,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-11-20 05:04:11,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-11-20 05:04:11,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2421, Unknown=0, NotChecked=0, Total=2652 [2019-11-20 05:04:11,265 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 52 states. [2019-11-20 05:04:12,405 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 42 [2019-11-20 05:04:13,007 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-11-20 05:04:13,291 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2019-11-20 05:04:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:16,872 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2019-11-20 05:04:16,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-11-20 05:04:16,873 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 32 [2019-11-20 05:04:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:16,874 INFO L225 Difference]: With dead ends: 99 [2019-11-20 05:04:16,874 INFO L226 Difference]: Without dead ends: 75 [2019-11-20 05:04:16,877 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3344 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1146, Invalid=9360, Unknown=0, NotChecked=0, Total=10506 [2019-11-20 05:04:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-20 05:04:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 57. [2019-11-20 05:04:16,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-20 05:04:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2019-11-20 05:04:16,886 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 32 [2019-11-20 05:04:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:16,887 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2019-11-20 05:04:16,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-11-20 05:04:16,887 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2019-11-20 05:04:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 05:04:16,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:16,888 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:17,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:17,091 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:17,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:17,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1182567058, now seen corresponding path program 8 times [2019-11-20 05:04:17,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:17,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016648960] [2019-11-20 05:04:17,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 05:04:17,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016648960] [2019-11-20 05:04:17,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136864640] [2019-11-20 05:04:17,189 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:17,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:04:17,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:17,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:04:17,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 05:04:17,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:17,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2019-11-20 05:04:17,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294658096] [2019-11-20 05:04:17,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 05:04:17,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:17,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 05:04:17,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-11-20 05:04:17,285 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 16 states. [2019-11-20 05:04:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:17,453 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2019-11-20 05:04:17,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 05:04:17,454 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2019-11-20 05:04:17,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:17,454 INFO L225 Difference]: With dead ends: 94 [2019-11-20 05:04:17,454 INFO L226 Difference]: Without dead ends: 68 [2019-11-20 05:04:17,455 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2019-11-20 05:04:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-20 05:04:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2019-11-20 05:04:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 05:04:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2019-11-20 05:04:17,464 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 34 [2019-11-20 05:04:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:17,464 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2019-11-20 05:04:17,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 05:04:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2019-11-20 05:04:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 05:04:17,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:17,466 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:17,668 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:17,669 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:17,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:17,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1607440760, now seen corresponding path program 1 times [2019-11-20 05:04:17,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:17,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326757223] [2019-11-20 05:04:17,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 05:04:17,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326757223] [2019-11-20 05:04:17,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955505081] [2019-11-20 05:04:17,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:17,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:04:17,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 05:04:17,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:17,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2019-11-20 05:04:17,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92575437] [2019-11-20 05:04:17,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 05:04:17,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:17,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 05:04:17,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-20 05:04:17,895 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 16 states. [2019-11-20 05:04:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:18,112 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2019-11-20 05:04:18,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 05:04:18,113 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2019-11-20 05:04:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:18,113 INFO L225 Difference]: With dead ends: 63 [2019-11-20 05:04:18,114 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 05:04:18,114 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2019-11-20 05:04:18,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 05:04:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2019-11-20 05:04:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 05:04:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-11-20 05:04:18,120 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 34 [2019-11-20 05:04:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:18,120 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-11-20 05:04:18,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 05:04:18,120 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-11-20 05:04:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 05:04:18,121 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:18,121 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:18,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:18,322 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:18,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:18,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1984465037, now seen corresponding path program 9 times [2019-11-20 05:04:18,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:18,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977972537] [2019-11-20 05:04:18,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:19,394 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2019-11-20 05:04:19,678 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 55 [2019-11-20 05:04:19,888 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 43 [2019-11-20 05:04:20,179 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-11-20 05:04:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:04:21,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977972537] [2019-11-20 05:04:21,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205666930] [2019-11-20 05:04:21,183 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:21,250 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-20 05:04:21,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:21,251 WARN L253 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 65 conjunts are in the unsatisfiable core [2019-11-20 05:04:21,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:21,268 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 05:04:21,269 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,278 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,278 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,278 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-11-20 05:04:21,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,320 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:04:21,320 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,328 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,329 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:21,329 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:30 [2019-11-20 05:04:21,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,411 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,411 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2019-11-20 05:04:21,411 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,435 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 05:04:21,436 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:21,436 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 05:04:21,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,494 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,494 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2019-11-20 05:04:21,495 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,523 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 05:04:21,523 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:21,524 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 05:04:21,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,575 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,576 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2019-11-20 05:04:21,576 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,600 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 05:04:21,601 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:21,601 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 05:04:21,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,745 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,746 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 95 [2019-11-20 05:04:21,746 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,778 INFO L567 ElimStorePlain]: treesize reduction 58, result has 49.1 percent of original size [2019-11-20 05:04:21,779 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,779 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:33 [2019-11-20 05:04:21,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:21,930 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2019-11-20 05:04:21,930 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,941 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:21,941 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:21,941 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:45 [2019-11-20 05:04:22,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,164 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 49 [2019-11-20 05:04:22,164 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,181 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:22,182 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,182 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:49 [2019-11-20 05:04:22,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,461 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 61 [2019-11-20 05:04:22,462 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,481 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:22,481 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,481 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:61 [2019-11-20 05:04:22,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,885 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:04:22,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:22,889 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2019-11-20 05:04:22,890 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,906 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:22,907 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:22,907 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:67 [2019-11-20 05:04:23,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,033 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2019-11-20 05:04:23,034 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:23,052 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:23,052 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:23,052 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:72 [2019-11-20 05:04:23,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,145 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:23,145 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 128 [2019-11-20 05:04:23,146 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:23,182 INFO L567 ElimStorePlain]: treesize reduction 92, result has 44.2 percent of original size [2019-11-20 05:04:23,182 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:23,182 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:73 [2019-11-20 05:04:23,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:23,358 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:23,358 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 152 [2019-11-20 05:04:23,361 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:23,404 INFO L567 ElimStorePlain]: treesize reduction 180, result has 27.1 percent of original size [2019-11-20 05:04:23,405 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:23,405 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:88, output treesize:67 [2019-11-20 05:04:23,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 05:04:23,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:23,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 28] total 60 [2019-11-20 05:04:23,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711182032] [2019-11-20 05:04:23,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2019-11-20 05:04:23,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:23,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2019-11-20 05:04:23,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3148, Unknown=0, NotChecked=0, Total=3540 [2019-11-20 05:04:23,827 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 60 states. [2019-11-20 05:04:27,974 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 51 [2019-11-20 05:04:29,162 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-11-20 05:04:31,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:31,115 INFO L93 Difference]: Finished difference Result 151 states and 184 transitions. [2019-11-20 05:04:31,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-11-20 05:04:31,115 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 39 [2019-11-20 05:04:31,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:31,116 INFO L225 Difference]: With dead ends: 151 [2019-11-20 05:04:31,116 INFO L226 Difference]: Without dead ends: 133 [2019-11-20 05:04:31,121 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6589 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=1825, Invalid=16265, Unknown=0, NotChecked=0, Total=18090 [2019-11-20 05:04:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-20 05:04:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 74. [2019-11-20 05:04:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 05:04:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2019-11-20 05:04:31,136 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 39 [2019-11-20 05:04:31,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:31,137 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2019-11-20 05:04:31,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 60 states. [2019-11-20 05:04:31,137 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2019-11-20 05:04:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 05:04:31,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:31,139 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:31,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:31,343 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:31,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:31,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1289433905, now seen corresponding path program 2 times [2019-11-20 05:04:31,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:31,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013141826] [2019-11-20 05:04:31,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:31,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013141826] [2019-11-20 05:04:31,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960342728] [2019-11-20 05:04:31,687 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:31,741 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:04:31,741 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:31,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-20 05:04:31,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:31,850 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-20 05:04:31,850 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,856 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:31,856 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,856 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-11-20 05:04:31,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:31,919 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:31,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2019-11-20 05:04:31,920 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:31,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,931 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 05:04:31,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:31,974 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:31,974 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2019-11-20 05:04:31,975 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,982 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:31,982 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:31,983 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 05:04:32,022 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:32,024 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:32,024 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2019-11-20 05:04:32,025 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:32,032 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:32,032 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:32,033 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 05:04:32,074 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-20 05:04:32,074 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:32,085 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:32,085 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:32,085 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-11-20 05:04:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:32,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:32,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2019-11-20 05:04:32,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881061741] [2019-11-20 05:04:32,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 05:04:32,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:32,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 05:04:32,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2019-11-20 05:04:32,112 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 25 states. [2019-11-20 05:04:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:32,731 INFO L93 Difference]: Finished difference Result 104 states and 127 transitions. [2019-11-20 05:04:32,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 05:04:32,731 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2019-11-20 05:04:32,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:32,732 INFO L225 Difference]: With dead ends: 104 [2019-11-20 05:04:32,732 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 05:04:32,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 05:04:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 05:04:32,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 80. [2019-11-20 05:04:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 05:04:32,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2019-11-20 05:04:32,744 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 39 [2019-11-20 05:04:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:32,745 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2019-11-20 05:04:32,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 05:04:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2019-11-20 05:04:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 05:04:32,746 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:32,746 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:32,949 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:32,949 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash 621558517, now seen corresponding path program 3 times [2019-11-20 05:04:32,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:32,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440281639] [2019-11-20 05:04:32,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:33,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440281639] [2019-11-20 05:04:33,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605524726] [2019-11-20 05:04:33,339 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:33,401 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-20 05:04:33,401 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:33,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-20 05:04:33,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:33,456 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-11-20 05:04:33,457 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,461 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:33,462 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,462 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-11-20 05:04:33,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,500 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 27 [2019-11-20 05:04:33,501 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,507 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:33,507 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,507 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2019-11-20 05:04:33,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,666 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:33,666 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 155 [2019-11-20 05:04:33,667 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,720 INFO L567 ElimStorePlain]: treesize reduction 66, result has 63.7 percent of original size [2019-11-20 05:04:33,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,723 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:33,723 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:116 [2019-11-20 05:04:33,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:33,927 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-11-20 05:04:33,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 05:04:33,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,953 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,957 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2019-11-20 05:04:33,958 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,972 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 43 [2019-11-20 05:04:33,972 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:33,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:33,992 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:33,992 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 133 [2019-11-20 05:04:33,993 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:34,075 INFO L567 ElimStorePlain]: treesize reduction 34, result has 83.0 percent of original size [2019-11-20 05:04:34,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,077 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2019-11-20 05:04:34,078 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:201, output treesize:166 [2019-11-20 05:04:34,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 05:04:34,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,326 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-11-20 05:04:34,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 05:04:34,331 INFO L392 ElimStorePlain]: Different costs {4=[v_prenex_8, v_prenex_10, v_prenex_6], 6=[|#memory_int|]} [2019-11-20 05:04:34,336 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,338 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:34,338 INFO L377 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 3 case distinctions, treesize of input 30 treesize of output 16 [2019-11-20 05:04:34,338 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:34,406 INFO L567 ElimStorePlain]: treesize reduction 6, result has 95.3 percent of original size [2019-11-20 05:04:34,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,414 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:34,415 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 26 [2019-11-20 05:04:34,415 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:34,482 INFO L567 ElimStorePlain]: treesize reduction 6, result has 94.4 percent of original size [2019-11-20 05:04:34,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,487 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:34,488 INFO L377 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 3 case distinctions, treesize of input 30 treesize of output 16 [2019-11-20 05:04:34,488 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:34,531 INFO L567 ElimStorePlain]: treesize reduction 13, result has 83.5 percent of original size [2019-11-20 05:04:34,534 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:34,543 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:34,543 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 47 [2019-11-20 05:04:34,544 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:34,567 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:34,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,569 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-20 05:04:34,569 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:150, output treesize:99 [2019-11-20 05:04:34,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:34,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:34,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 31 [2019-11-20 05:04:34,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713152450] [2019-11-20 05:04:34,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-20 05:04:34,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:34,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-20 05:04:34,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2019-11-20 05:04:34,761 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand 31 states. [2019-11-20 05:04:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:37,103 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2019-11-20 05:04:37,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 05:04:37,104 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2019-11-20 05:04:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:37,104 INFO L225 Difference]: With dead ends: 108 [2019-11-20 05:04:37,104 INFO L226 Difference]: Without dead ends: 88 [2019-11-20 05:04:37,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2019-11-20 05:04:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-20 05:04:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2019-11-20 05:04:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 05:04:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2019-11-20 05:04:37,117 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 39 [2019-11-20 05:04:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:37,118 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2019-11-20 05:04:37,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-20 05:04:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2019-11-20 05:04:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 05:04:37,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:37,119 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:37,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:37,322 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:37,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:37,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1765610319, now seen corresponding path program 4 times [2019-11-20 05:04:37,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:37,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937356914] [2019-11-20 05:04:37,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:37,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937356914] [2019-11-20 05:04:37,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602375792] [2019-11-20 05:04:37,624 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:37,677 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:04:37,677 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:37,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-20 05:04:37,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:37,687 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-11-20 05:04:37,687 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,689 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:37,689 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,689 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-11-20 05:04:37,735 INFO L343 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2019-11-20 05:04:37,735 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2019-11-20 05:04:37,737 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,741 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:37,742 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,742 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-11-20 05:04:37,816 INFO L343 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2019-11-20 05:04:37,816 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2019-11-20 05:04:37,816 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,825 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:37,825 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:37,826 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2019-11-20 05:04:38,097 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2019-11-20 05:04:38,097 INFO L343 Elim1Store]: treesize reduction 52, result has 79.8 percent of original size [2019-11-20 05:04:38,097 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 61 treesize of output 228 [2019-11-20 05:04:38,098 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:38,171 INFO L567 ElimStorePlain]: treesize reduction 100, result has 62.3 percent of original size [2019-11-20 05:04:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,182 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:38,182 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:165 [2019-11-20 05:04:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,309 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 05:04:38,492 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-11-20 05:04:38,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 05:04:38,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,521 INFO L377 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 58 treesize of output 24 [2019-11-20 05:04:38,521 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:38,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,536 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 24 [2019-11-20 05:04:38,536 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:38,540 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,541 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,542 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:04:38,545 INFO L377 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 60 treesize of output 26 [2019-11-20 05:04:38,545 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:38,572 INFO L343 Elim1Store]: treesize reduction 52, result has 49.5 percent of original size [2019-11-20 05:04:38,573 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 102 [2019-11-20 05:04:38,573 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:38,681 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-11-20 05:04:38,682 INFO L567 ElimStorePlain]: treesize reduction 39, result has 71.1 percent of original size [2019-11-20 05:04:38,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,683 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-11-20 05:04:38,683 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:264, output treesize:105 [2019-11-20 05:04:38,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:04:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 24 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-20 05:04:38,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:38,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 31 [2019-11-20 05:04:38,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265721788] [2019-11-20 05:04:38,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-20 05:04:38,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:38,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-20 05:04:38,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2019-11-20 05:04:38,878 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand 31 states. [2019-11-20 05:04:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:04:40,266 INFO L93 Difference]: Finished difference Result 117 states and 136 transitions. [2019-11-20 05:04:40,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-20 05:04:40,266 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2019-11-20 05:04:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:04:40,267 INFO L225 Difference]: With dead ends: 117 [2019-11-20 05:04:40,267 INFO L226 Difference]: Without dead ends: 103 [2019-11-20 05:04:40,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=397, Invalid=2573, Unknown=0, NotChecked=0, Total=2970 [2019-11-20 05:04:40,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-20 05:04:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2019-11-20 05:04:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 05:04:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2019-11-20 05:04:40,277 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 39 [2019-11-20 05:04:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:04:40,277 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2019-11-20 05:04:40,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-20 05:04:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2019-11-20 05:04:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 05:04:40,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:04:40,278 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:04:40,481 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:40,481 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:04:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:04:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1843916427, now seen corresponding path program 5 times [2019-11-20 05:04:40,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:04:40,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015848387] [2019-11-20 05:04:40,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:04:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:04:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:04:40,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015848387] [2019-11-20 05:04:40,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011067003] [2019-11-20 05:04:40,805 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:04:41,012 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2019-11-20 05:04:41,012 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:04:41,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 05:04:41,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:04:41,030 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-11-20 05:04:41,030 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,034 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:41,034 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,034 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 05:04:41,078 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:41,078 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 46 [2019-11-20 05:04:41,079 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,094 INFO L567 ElimStorePlain]: treesize reduction 24, result has 47.8 percent of original size [2019-11-20 05:04:41,095 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,095 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-11-20 05:04:41,377 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:41,377 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 108 [2019-11-20 05:04:41,377 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,406 INFO L567 ElimStorePlain]: treesize reduction 60, result has 38.8 percent of original size [2019-11-20 05:04:41,406 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:41,407 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2019-11-20 05:04:41,910 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:41,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 186 [2019-11-20 05:04:41,911 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:41,954 INFO L567 ElimStorePlain]: treesize reduction 96, result has 36.0 percent of original size [2019-11-20 05:04:41,955 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-20 05:04:41,955 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:58, output treesize:54 [2019-11-20 05:04:48,922 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:48,922 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 100 [2019-11-20 05:04:48,923 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:04:48,929 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:04:48,929 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:04:48,929 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:61, output treesize:3 [2019-11-20 05:04:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-20 05:04:48,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:04:48,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2019-11-20 05:04:48,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070825138] [2019-11-20 05:04:48,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-20 05:04:48,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:04:48,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-20 05:04:48,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=473, Unknown=5, NotChecked=0, Total=552 [2019-11-20 05:04:48,953 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand 24 states. [2019-11-20 05:05:05,037 WARN L191 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-20 05:05:05,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:05,239 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2019-11-20 05:05:05,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 05:05:05,242 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2019-11-20 05:05:05,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:05,243 INFO L225 Difference]: With dead ends: 114 [2019-11-20 05:05:05,243 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 05:05:05,244 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=199, Invalid=980, Unknown=11, NotChecked=0, Total=1190 [2019-11-20 05:05:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 05:05:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2019-11-20 05:05:05,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-20 05:05:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2019-11-20 05:05:05,257 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 39 [2019-11-20 05:05:05,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:05,257 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2019-11-20 05:05:05,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-20 05:05:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2019-11-20 05:05:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 05:05:05,258 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:05,258 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:05,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:05,459 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:05,459 INFO L82 PathProgramCache]: Analyzing trace with hash -52187595, now seen corresponding path program 10 times [2019-11-20 05:05:05,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:05,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354471788] [2019-11-20 05:05:05,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:05,583 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-20 05:05:05,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354471788] [2019-11-20 05:05:05,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658269093] [2019-11-20 05:05:05,584 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:05,618 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:05:05,618 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:05,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 05:05:05,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-20 05:05:05,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:05,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2019-11-20 05:05:05,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185714264] [2019-11-20 05:05:05,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 05:05:05,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:05,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 05:05:05,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2019-11-20 05:05:05,709 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 19 states. [2019-11-20 05:05:06,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:06,043 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2019-11-20 05:05:06,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 05:05:06,044 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 41 [2019-11-20 05:05:06,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:06,045 INFO L225 Difference]: With dead ends: 132 [2019-11-20 05:05:06,045 INFO L226 Difference]: Without dead ends: 76 [2019-11-20 05:05:06,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2019-11-20 05:05:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-20 05:05:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2019-11-20 05:05:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-20 05:05:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2019-11-20 05:05:06,057 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 41 [2019-11-20 05:05:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:06,057 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2019-11-20 05:05:06,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 05:05:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2019-11-20 05:05:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 05:05:06,060 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:06,060 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:06,271 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:06,272 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:06,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:06,272 INFO L82 PathProgramCache]: Analyzing trace with hash 844219272, now seen corresponding path program 6 times [2019-11-20 05:05:06,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:06,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521494536] [2019-11-20 05:05:06,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-20 05:05:06,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521494536] [2019-11-20 05:05:06,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833963365] [2019-11-20 05:05:06,413 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:06,511 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2019-11-20 05:05:06,511 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:06,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 05:05:06,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 22 proven. 29 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-20 05:05:06,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:06,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2019-11-20 05:05:06,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600052460] [2019-11-20 05:05:06,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 05:05:06,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:06,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 05:05:06,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 05:05:06,605 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand 19 states. [2019-11-20 05:05:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:06,983 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2019-11-20 05:05:06,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 05:05:06,984 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 44 [2019-11-20 05:05:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:06,984 INFO L225 Difference]: With dead ends: 75 [2019-11-20 05:05:06,984 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 05:05:06,985 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2019-11-20 05:05:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 05:05:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 47. [2019-11-20 05:05:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-20 05:05:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2019-11-20 05:05:06,995 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 44 [2019-11-20 05:05:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:06,995 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2019-11-20 05:05:06,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 05:05:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2019-11-20 05:05:06,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 05:05:06,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:06,996 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:07,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:07,196 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:07,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:07,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1593279692, now seen corresponding path program 11 times [2019-11-20 05:05:07,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:07,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450144348] [2019-11-20 05:05:07,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:08,186 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 47 [2019-11-20 05:05:08,346 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2019-11-20 05:05:08,646 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 51 [2019-11-20 05:05:08,815 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 57 [2019-11-20 05:05:09,098 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-11-20 05:05:09,269 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2019-11-20 05:05:09,546 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-11-20 05:05:09,706 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-11-20 05:05:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:05:11,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450144348] [2019-11-20 05:05:11,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321878968] [2019-11-20 05:05:11,070 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:11,212 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 05:05:11,212 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:11,215 WARN L253 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 88 conjunts are in the unsatisfiable core [2019-11-20 05:05:11,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:11,220 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:05:11,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,253 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:11,258 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:05:11,258 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,278 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:11,279 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,279 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2019-11-20 05:05:11,348 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:05:11,349 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,386 INFO L567 ElimStorePlain]: treesize reduction 4, result has 88.6 percent of original size [2019-11-20 05:05:11,386 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,386 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:31 [2019-11-20 05:05:11,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,520 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:11,521 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 40 [2019-11-20 05:05:11,521 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,549 INFO L567 ElimStorePlain]: treesize reduction 4, result has 90.5 percent of original size [2019-11-20 05:05:11,549 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,550 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2019-11-20 05:05:11,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,685 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,686 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,691 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:11,691 INFO L377 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2019-11-20 05:05:11,692 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,726 INFO L567 ElimStorePlain]: treesize reduction 16, result has 74.6 percent of original size [2019-11-20 05:05:11,726 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,726 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-11-20 05:05:11,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,906 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:11,913 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:11,913 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 67 [2019-11-20 05:05:11,914 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,944 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.1 percent of original size [2019-11-20 05:05:11,944 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:11,945 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-11-20 05:05:12,061 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,062 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,063 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,064 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,066 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,066 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,072 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:12,073 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 55 treesize of output 74 [2019-11-20 05:05:12,073 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,104 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.3 percent of original size [2019-11-20 05:05:12,104 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,104 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 05:05:12,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,286 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:12,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,293 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,294 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,320 INFO L343 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2019-11-20 05:05:12,321 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 87 treesize of output 116 [2019-11-20 05:05:12,321 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,377 INFO L567 ElimStorePlain]: treesize reduction 57, result has 54.0 percent of original size [2019-11-20 05:05:12,377 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,377 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:67 [2019-11-20 05:05:12,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,577 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:12,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,583 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,596 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:12,597 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 98 [2019-11-20 05:05:12,597 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,631 INFO L567 ElimStorePlain]: treesize reduction 21, result has 75.6 percent of original size [2019-11-20 05:05:12,631 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:65 [2019-11-20 05:05:12,829 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,831 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,831 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,832 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,833 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:12,833 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,837 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:12,842 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:12,842 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 101 [2019-11-20 05:05:12,843 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,876 INFO L567 ElimStorePlain]: treesize reduction 29, result has 69.5 percent of original size [2019-11-20 05:05:12,876 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:12,876 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:66 [2019-11-20 05:05:13,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,084 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:13,085 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,096 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:13,096 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 101 [2019-11-20 05:05:13,097 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,167 INFO L567 ElimStorePlain]: treesize reduction 21, result has 76.4 percent of original size [2019-11-20 05:05:13,167 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,167 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:68 [2019-11-20 05:05:13,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,425 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:13,425 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 79 [2019-11-20 05:05:13,426 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,454 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.3 percent of original size [2019-11-20 05:05:13,454 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,455 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:60 [2019-11-20 05:05:13,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,620 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:13,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,677 INFO L343 Elim1Store]: treesize reduction 8, result has 89.7 percent of original size [2019-11-20 05:05:13,678 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 76 treesize of output 133 [2019-11-20 05:05:13,678 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,721 INFO L567 ElimStorePlain]: treesize reduction 43, result has 62.3 percent of original size [2019-11-20 05:05:13,721 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,721 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:71 [2019-11-20 05:05:13,894 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:13,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,897 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,898 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,899 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,900 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,902 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:13,904 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 78 [2019-11-20 05:05:13,905 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,958 INFO L567 ElimStorePlain]: treesize reduction 4, result has 95.2 percent of original size [2019-11-20 05:05:13,958 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:13,959 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:80 [2019-11-20 05:05:14,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,132 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:14,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,146 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:14,147 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 84 treesize of output 113 [2019-11-20 05:05:14,147 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:14,187 INFO L567 ElimStorePlain]: treesize reduction 60, result has 57.1 percent of original size [2019-11-20 05:05:14,187 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:14,187 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:80 [2019-11-20 05:05:14,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,366 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:14,366 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,367 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,368 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:14,382 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:14,383 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 94 treesize of output 129 [2019-11-20 05:05:14,383 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:14,424 INFO L567 ElimStorePlain]: treesize reduction 61, result has 56.7 percent of original size [2019-11-20 05:05:14,424 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:14,424 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:80 [2019-11-20 05:05:14,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:14,635 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:14,654 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:14,655 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 81 treesize of output 108 [2019-11-20 05:05:14,656 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:14,743 INFO L567 ElimStorePlain]: treesize reduction 54, result has 56.5 percent of original size [2019-11-20 05:05:14,744 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:05:14,744 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:93, output treesize:70 [2019-11-20 05:05:15,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:05:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:05:15,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:15,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 78 [2019-11-20 05:05:15,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122496850] [2019-11-20 05:05:15,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2019-11-20 05:05:15,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:15,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2019-11-20 05:05:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=5537, Unknown=0, NotChecked=0, Total=6006 [2019-11-20 05:05:15,322 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 78 states. [2019-11-20 05:05:20,711 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-11-20 05:05:21,010 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-11-20 05:05:22,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:22,211 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2019-11-20 05:05:22,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-11-20 05:05:22,211 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 46 [2019-11-20 05:05:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:22,212 INFO L225 Difference]: With dead ends: 111 [2019-11-20 05:05:22,212 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 05:05:22,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5734 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=1418, Invalid=14838, Unknown=0, NotChecked=0, Total=16256 [2019-11-20 05:05:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 05:05:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 56. [2019-11-20 05:05:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-20 05:05:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-11-20 05:05:22,220 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 46 [2019-11-20 05:05:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:22,221 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2019-11-20 05:05:22,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 78 states. [2019-11-20 05:05:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2019-11-20 05:05:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-20 05:05:22,221 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:22,221 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:22,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:22,422 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:22,422 INFO L82 PathProgramCache]: Analyzing trace with hash -2108307122, now seen corresponding path program 12 times [2019-11-20 05:05:22,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:22,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396070721] [2019-11-20 05:05:22,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-20 05:05:22,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396070721] [2019-11-20 05:05:22,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147841957] [2019-11-20 05:05:22,527 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:22,631 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 05:05:22,631 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:22,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 05:05:22,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 36 proven. 35 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-20 05:05:22,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:22,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2019-11-20 05:05:22,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61993879] [2019-11-20 05:05:22,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 05:05:22,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:22,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 05:05:22,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2019-11-20 05:05:22,753 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 22 states. [2019-11-20 05:05:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:23,053 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2019-11-20 05:05:23,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 05:05:23,053 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 48 [2019-11-20 05:05:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:23,054 INFO L225 Difference]: With dead ends: 131 [2019-11-20 05:05:23,054 INFO L226 Difference]: Without dead ends: 76 [2019-11-20 05:05:23,054 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2019-11-20 05:05:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-20 05:05:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2019-11-20 05:05:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 05:05:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2019-11-20 05:05:23,065 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 48 [2019-11-20 05:05:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:23,065 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2019-11-20 05:05:23,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 05:05:23,065 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2019-11-20 05:05:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 05:05:23,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:23,066 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:23,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:23,266 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:23,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1708062953, now seen corresponding path program 7 times [2019-11-20 05:05:23,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:23,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633978242] [2019-11-20 05:05:23,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-20 05:05:23,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633978242] [2019-11-20 05:05:23,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461653159] [2019-11-20 05:05:23,400 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:23,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 05:05:23,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-20 05:05:23,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:23,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2019-11-20 05:05:23,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628471779] [2019-11-20 05:05:23,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 05:05:23,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:23,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 05:05:23,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-11-20 05:05:23,528 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 22 states. [2019-11-20 05:05:23,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:23,865 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2019-11-20 05:05:23,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-20 05:05:23,867 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 51 [2019-11-20 05:05:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:23,867 INFO L225 Difference]: With dead ends: 75 [2019-11-20 05:05:23,867 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 05:05:23,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 05:05:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 05:05:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2019-11-20 05:05:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 05:05:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-11-20 05:05:23,880 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 51 [2019-11-20 05:05:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:23,880 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-11-20 05:05:23,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 05:05:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-11-20 05:05:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-20 05:05:23,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:23,881 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:24,084 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:24,084 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:24,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:24,084 INFO L82 PathProgramCache]: Analyzing trace with hash 99891227, now seen corresponding path program 13 times [2019-11-20 05:05:24,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:24,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514330794] [2019-11-20 05:05:24,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:25,135 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2019-11-20 05:05:25,303 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 47 [2019-11-20 05:05:25,439 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2019-11-20 05:05:25,623 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 51 [2019-11-20 05:05:25,825 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 54 [2019-11-20 05:05:25,985 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 43 [2019-11-20 05:05:26,177 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 54 [2019-11-20 05:05:26,393 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 57 [2019-11-20 05:05:26,551 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2019-11-20 05:05:26,736 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2019-11-20 05:05:26,938 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-11-20 05:05:27,094 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2019-11-20 05:05:27,256 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-11-20 05:05:27,438 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-11-20 05:05:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:05:29,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514330794] [2019-11-20 05:05:29,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484159214] [2019-11-20 05:05:29,078 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:29,132 WARN L253 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 95 conjunts are in the unsatisfiable core [2019-11-20 05:05:29,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:29,138 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:05:29,138 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,145 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:29,147 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:05:29,147 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,153 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:29,153 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,154 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 05:05:29,191 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:05:29,191 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,199 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:29,199 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,199 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 05:05:29,289 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:29,289 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2019-11-20 05:05:29,289 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,310 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 05:05:29,311 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,311 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 05:05:29,431 INFO L343 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2019-11-20 05:05:29,431 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 71 [2019-11-20 05:05:29,431 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,457 INFO L567 ElimStorePlain]: treesize reduction 24, result has 66.7 percent of original size [2019-11-20 05:05:29,458 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,458 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 05:05:29,605 INFO L343 Elim1Store]: treesize reduction 122, result has 31.5 percent of original size [2019-11-20 05:05:29,605 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 86 [2019-11-20 05:05:29,606 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,636 INFO L567 ElimStorePlain]: treesize reduction 24, result has 71.4 percent of original size [2019-11-20 05:05:29,637 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,637 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 05:05:29,810 INFO L343 Elim1Store]: treesize reduction 210, result has 24.5 percent of original size [2019-11-20 05:05:29,810 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 101 [2019-11-20 05:05:29,811 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,846 INFO L567 ElimStorePlain]: treesize reduction 24, result has 75.0 percent of original size [2019-11-20 05:05:29,846 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:29,846 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2019-11-20 05:05:30,112 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-11-20 05:05:30,112 INFO L343 Elim1Store]: treesize reduction 112, result has 62.7 percent of original size [2019-11-20 05:05:30,112 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 224 [2019-11-20 05:05:30,113 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:30,179 INFO L567 ElimStorePlain]: treesize reduction 144, result has 34.2 percent of original size [2019-11-20 05:05:30,179 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:30,180 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 05:05:30,790 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 05:05:30,791 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 05:05:30,791 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 96 treesize of output 365 [2019-11-20 05:05:30,792 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:30,867 INFO L567 ElimStorePlain]: treesize reduction 369, result has 17.6 percent of original size [2019-11-20 05:05:30,867 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:30,867 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:79 [2019-11-20 05:05:31,335 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 05:05:31,336 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 05:05:31,336 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 96 treesize of output 365 [2019-11-20 05:05:31,338 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:31,406 INFO L567 ElimStorePlain]: treesize reduction 191, result has 27.7 percent of original size [2019-11-20 05:05:31,406 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:31,406 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:73 [2019-11-20 05:05:31,887 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 05:05:31,887 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 05:05:31,887 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 96 treesize of output 365 [2019-11-20 05:05:31,889 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:31,972 INFO L567 ElimStorePlain]: treesize reduction 195, result has 27.8 percent of original size [2019-11-20 05:05:31,972 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:31,973 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:75 [2019-11-20 05:05:32,534 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 74 [2019-11-20 05:05:32,535 INFO L343 Elim1Store]: treesize reduction 243, result has 53.4 percent of original size [2019-11-20 05:05:32,535 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 99 treesize of output 322 [2019-11-20 05:05:32,536 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:32,625 INFO L567 ElimStorePlain]: treesize reduction 167, result has 31.3 percent of original size [2019-11-20 05:05:32,626 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:32,626 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:76 [2019-11-20 05:05:33,343 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 05:05:33,343 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 05:05:33,343 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 96 treesize of output 365 [2019-11-20 05:05:33,345 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:33,425 INFO L567 ElimStorePlain]: treesize reduction 373, result has 16.7 percent of original size [2019-11-20 05:05:33,425 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:33,425 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:75 [2019-11-20 05:05:33,766 INFO L343 Elim1Store]: treesize reduction 304, result has 12.6 percent of original size [2019-11-20 05:05:33,767 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 81 treesize of output 83 [2019-11-20 05:05:33,767 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:33,783 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:33,784 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:33,784 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:70 [2019-11-20 05:05:34,046 INFO L343 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2019-11-20 05:05:34,046 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 176 [2019-11-20 05:05:34,047 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,091 INFO L567 ElimStorePlain]: treesize reduction 112, result has 42.0 percent of original size [2019-11-20 05:05:34,091 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,092 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:81 [2019-11-20 05:05:34,412 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2019-11-20 05:05:34,412 INFO L343 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2019-11-20 05:05:34,413 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 276 [2019-11-20 05:05:34,414 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,475 INFO L567 ElimStorePlain]: treesize reduction 308, result has 23.0 percent of original size [2019-11-20 05:05:34,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,476 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:92 [2019-11-20 05:05:34,887 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 100 [2019-11-20 05:05:34,888 INFO L343 Elim1Store]: treesize reduction 222, result has 53.8 percent of original size [2019-11-20 05:05:34,888 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 378 [2019-11-20 05:05:34,890 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,968 INFO L567 ElimStorePlain]: treesize reduction 459, result has 18.6 percent of original size [2019-11-20 05:05:34,968 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:34,968 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:105 [2019-11-20 05:05:35,261 INFO L343 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2019-11-20 05:05:35,261 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 104 treesize of output 179 [2019-11-20 05:05:35,262 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:35,317 INFO L567 ElimStorePlain]: treesize reduction 158, result has 38.3 percent of original size [2019-11-20 05:05:35,317 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:35,317 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:98 [2019-11-20 05:05:35,650 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2019-11-20 05:05:35,650 INFO L343 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2019-11-20 05:05:35,651 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 112 treesize of output 281 [2019-11-20 05:05:35,652 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:35,712 INFO L567 ElimStorePlain]: treesize reduction 336, result has 22.0 percent of original size [2019-11-20 05:05:35,712 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:35,712 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:95 [2019-11-20 05:05:35,936 INFO L343 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2019-11-20 05:05:35,936 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 86 [2019-11-20 05:05:35,937 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:35,953 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:35,953 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:05:35,953 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:108, output treesize:70 [2019-11-20 05:05:36,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:05:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:05:36,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:36,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 91 [2019-11-20 05:05:36,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147094137] [2019-11-20 05:05:36,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-11-20 05:05:36,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:36,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-11-20 05:05:36,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=876, Invalid=7314, Unknown=0, NotChecked=0, Total=8190 [2019-11-20 05:05:36,150 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 91 states. [2019-11-20 05:05:39,834 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 64 [2019-11-20 05:05:40,563 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-11-20 05:05:40,966 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2019-11-20 05:05:41,331 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 65 [2019-11-20 05:05:41,698 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2019-11-20 05:05:42,066 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2019-11-20 05:05:43,035 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-11-20 05:05:43,841 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2019-11-20 05:05:44,087 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 66 [2019-11-20 05:05:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:47,654 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2019-11-20 05:05:47,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-11-20 05:05:47,655 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 53 [2019-11-20 05:05:47,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:47,656 INFO L225 Difference]: With dead ends: 138 [2019-11-20 05:05:47,656 INFO L226 Difference]: Without dead ends: 99 [2019-11-20 05:05:47,657 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 9 SyntacticMatches, 5 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10699 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=2987, Invalid=25405, Unknown=0, NotChecked=0, Total=28392 [2019-11-20 05:05:47,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-20 05:05:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 83. [2019-11-20 05:05:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-20 05:05:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2019-11-20 05:05:47,677 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 53 [2019-11-20 05:05:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:47,677 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2019-11-20 05:05:47,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-11-20 05:05:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2019-11-20 05:05:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-20 05:05:47,678 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:47,678 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:47,881 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:47,881 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:47,881 INFO L82 PathProgramCache]: Analyzing trace with hash -996961989, now seen corresponding path program 8 times [2019-11-20 05:05:47,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:47,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613363160] [2019-11-20 05:05:47,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-20 05:05:48,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613363160] [2019-11-20 05:05:48,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621893597] [2019-11-20 05:05:48,019 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:48,057 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:05:48,058 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:48,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 05:05:48,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 36 proven. 64 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-20 05:05:48,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:48,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2019-11-20 05:05:48,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240041236] [2019-11-20 05:05:48,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 05:05:48,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:48,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 05:05:48,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2019-11-20 05:05:48,171 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 25 states. [2019-11-20 05:05:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:48,663 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2019-11-20 05:05:48,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-20 05:05:48,663 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 55 [2019-11-20 05:05:48,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:48,664 INFO L225 Difference]: With dead ends: 108 [2019-11-20 05:05:48,664 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 05:05:48,664 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 05:05:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 05:05:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2019-11-20 05:05:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 05:05:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2019-11-20 05:05:48,680 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 55 [2019-11-20 05:05:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:48,681 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2019-11-20 05:05:48,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 05:05:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2019-11-20 05:05:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 05:05:48,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:48,681 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:48,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:48,884 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:48,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:48,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1666550004, now seen corresponding path program 9 times [2019-11-20 05:05:48,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:48,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182229386] [2019-11-20 05:05:48,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-20 05:05:49,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182229386] [2019-11-20 05:05:49,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221225037] [2019-11-20 05:05:49,033 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:49,260 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-11-20 05:05:49,260 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:49,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 05:05:49,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 70 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 05:05:49,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:05:49,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2019-11-20 05:05:49,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525480010] [2019-11-20 05:05:49,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 05:05:49,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:05:49,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 05:05:49,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2019-11-20 05:05:49,376 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 25 states. [2019-11-20 05:05:49,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:05:49,601 INFO L93 Difference]: Finished difference Result 109 states and 117 transitions. [2019-11-20 05:05:49,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 05:05:49,601 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2019-11-20 05:05:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:05:49,602 INFO L225 Difference]: With dead ends: 109 [2019-11-20 05:05:49,602 INFO L226 Difference]: Without dead ends: 65 [2019-11-20 05:05:49,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2019-11-20 05:05:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-20 05:05:49,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2019-11-20 05:05:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 05:05:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2019-11-20 05:05:49,614 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 58 [2019-11-20 05:05:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:05:49,614 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2019-11-20 05:05:49,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 05:05:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2019-11-20 05:05:49,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-20 05:05:49,615 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:05:49,615 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:05:49,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:49,819 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:05:49,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:05:49,819 INFO L82 PathProgramCache]: Analyzing trace with hash 703185580, now seen corresponding path program 14 times [2019-11-20 05:05:49,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:05:49,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431894547] [2019-11-20 05:05:49,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:05:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:05:51,711 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2019-11-20 05:05:52,140 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-11-20 05:05:52,450 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2019-11-20 05:05:52,639 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 59 [2019-11-20 05:05:52,982 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2019-11-20 05:05:53,192 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2019-11-20 05:05:53,368 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 49 [2019-11-20 05:05:53,554 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2019-11-20 05:05:53,763 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-20 05:05:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:05:56,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431894547] [2019-11-20 05:05:56,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652756808] [2019-11-20 05:05:56,180 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:05:56,224 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:05:56,225 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:05:56,227 WARN L253 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 111 conjunts are in the unsatisfiable core [2019-11-20 05:05:56,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:05:56,239 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 05:05:56,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,252 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,253 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,253 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-11-20 05:05:56,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,319 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:05:56,319 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,330 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,330 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,330 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2019-11-20 05:05:56,459 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,460 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2019-11-20 05:05:56,461 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,472 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2019-11-20 05:05:56,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,604 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2019-11-20 05:05:56,604 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,616 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,616 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,617 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2019-11-20 05:05:56,754 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,755 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,755 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,756 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,757 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,758 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,758 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,759 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2019-11-20 05:05:56,759 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,774 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,774 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,774 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2019-11-20 05:05:56,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:56,932 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2019-11-20 05:05:56,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,948 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:56,949 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:56,949 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:73 [2019-11-20 05:05:57,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,123 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 89 [2019-11-20 05:05:57,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,143 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:57,144 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,144 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:85 [2019-11-20 05:05:57,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,342 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,363 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2019-11-20 05:05:57,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,385 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:57,386 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,386 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:88 [2019-11-20 05:05:57,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,869 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:57,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:57,880 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 99 [2019-11-20 05:05:57,881 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,903 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:57,903 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:57,903 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:90 [2019-11-20 05:05:58,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,159 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:58,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,174 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2019-11-20 05:05:58,174 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:58,202 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,202 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:93 [2019-11-20 05:05:58,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,506 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,520 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:58,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,522 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,522 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,524 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,530 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2019-11-20 05:05:58,531 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,561 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:58,561 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,561 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 05:05:58,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,874 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:58,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:58,884 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2019-11-20 05:05:58,885 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,908 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:58,909 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:58,909 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 05:05:59,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,243 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,245 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,245 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:59,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,247 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,251 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,252 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,252 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2019-11-20 05:05:59,255 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:59,277 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:59,277 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:59,277 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 05:05:59,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,616 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:05:59,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:05:59,625 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2019-11-20 05:05:59,625 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:05:59,647 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:05:59,647 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:05:59,648 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 05:06:00,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,012 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,012 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,018 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 95 [2019-11-20 05:06:00,018 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,038 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:00,038 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,039 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:83 [2019-11-20 05:06:00,256 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,257 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,258 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,258 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,259 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,260 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,260 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,263 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:00,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,273 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 99 [2019-11-20 05:06:00,273 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,295 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:00,295 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,296 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:90 [2019-11-20 05:06:00,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,512 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:00,513 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,520 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,522 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,524 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,527 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 102 [2019-11-20 05:06:00,527 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,550 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:00,550 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,550 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:116, output treesize:93 [2019-11-20 05:06:00,775 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,776 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,777 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,780 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,780 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,784 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,784 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:00,785 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,786 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,786 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,791 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:00,792 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 105 [2019-11-20 05:06:00,793 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,821 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:00,821 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:00,822 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:106 [2019-11-20 05:06:01,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,075 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,076 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,076 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,077 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:01,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,078 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,079 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,079 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,080 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,085 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,087 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 99 [2019-11-20 05:06:01,087 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,110 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:01,110 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,110 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:94 [2019-11-20 05:06:01,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,361 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:01,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,366 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,367 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,367 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,368 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,369 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,369 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,371 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,371 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 102 [2019-11-20 05:06:01,372 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,402 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:01,402 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,402 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:97 [2019-11-20 05:06:01,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,666 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:01,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,673 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 105 [2019-11-20 05:06:01,673 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,696 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:01,697 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,697 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:104 [2019-11-20 05:06:01,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:01,966 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 85 [2019-11-20 05:06:01,967 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:01,984 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:01,985 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:06:01,985 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:74 [2019-11-20 05:06:02,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:06:02,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:06:02,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 54] total 104 [2019-11-20 05:06:02,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220669716] [2019-11-20 05:06:02,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 104 states [2019-11-20 05:06:02,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:06:02,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2019-11-20 05:06:02,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1250, Invalid=9462, Unknown=0, NotChecked=0, Total=10712 [2019-11-20 05:06:02,254 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 104 states. [2019-11-20 05:06:04,837 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2019-11-20 05:06:05,261 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2019-11-20 05:06:06,803 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-11-20 05:06:07,146 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2019-11-20 05:06:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:06:09,974 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2019-11-20 05:06:09,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2019-11-20 05:06:09,975 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 60 [2019-11-20 05:06:09,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:06:09,976 INFO L225 Difference]: With dead ends: 174 [2019-11-20 05:06:09,976 INFO L226 Difference]: Without dead ends: 147 [2019-11-20 05:06:09,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 9 SyntacticMatches, 6 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7786 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=2510, Invalid=18082, Unknown=0, NotChecked=0, Total=20592 [2019-11-20 05:06:09,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-20 05:06:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 105. [2019-11-20 05:06:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 05:06:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2019-11-20 05:06:09,995 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 60 [2019-11-20 05:06:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:06:09,995 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2019-11-20 05:06:09,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 104 states. [2019-11-20 05:06:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2019-11-20 05:06:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-20 05:06:09,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:06:09,996 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:06:10,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:10,199 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:06:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:06:10,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1504710446, now seen corresponding path program 15 times [2019-11-20 05:06:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:06:10,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671153732] [2019-11-20 05:06:10,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:06:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:06:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-20 05:06:10,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671153732] [2019-11-20 05:06:10,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244332360] [2019-11-20 05:06:10,420 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:10,670 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-11-20 05:06:10,670 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:06:10,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:06:10,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:06:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-20 05:06:10,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:06:10,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2019-11-20 05:06:10,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893889649] [2019-11-20 05:06:10,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-20 05:06:10,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:06:10,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-20 05:06:10,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2019-11-20 05:06:10,871 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 28 states. [2019-11-20 05:06:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:06:11,316 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2019-11-20 05:06:11,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-20 05:06:11,317 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 62 [2019-11-20 05:06:11,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:06:11,318 INFO L225 Difference]: With dead ends: 179 [2019-11-20 05:06:11,318 INFO L226 Difference]: Without dead ends: 96 [2019-11-20 05:06:11,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2019-11-20 05:06:11,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-20 05:06:11,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 82. [2019-11-20 05:06:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 05:06:11,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2019-11-20 05:06:11,346 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 62 [2019-11-20 05:06:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:06:11,346 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2019-11-20 05:06:11,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-20 05:06:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2019-11-20 05:06:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-20 05:06:11,347 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:06:11,347 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:06:11,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:11,551 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:06:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:06:11,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1552401418, now seen corresponding path program 16 times [2019-11-20 05:06:11,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:06:11,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424203397] [2019-11-20 05:06:11,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:06:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:06:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 36 proven. 98 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 05:06:11,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424203397] [2019-11-20 05:06:11,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439298182] [2019-11-20 05:06:11,773 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:11,848 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:06:11,848 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:06:11,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 05:06:11,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:06:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 85 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 05:06:11,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:06:11,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2019-11-20 05:06:11,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030378308] [2019-11-20 05:06:11,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-20 05:06:11,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:06:11,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-20 05:06:11,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2019-11-20 05:06:11,968 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 28 states. [2019-11-20 05:06:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:06:12,421 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2019-11-20 05:06:12,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-20 05:06:12,422 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 62 [2019-11-20 05:06:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:06:12,422 INFO L225 Difference]: With dead ends: 91 [2019-11-20 05:06:12,422 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 05:06:12,422 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=429, Invalid=1463, Unknown=0, NotChecked=0, Total=1892 [2019-11-20 05:06:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 05:06:12,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2019-11-20 05:06:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-20 05:06:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2019-11-20 05:06:12,434 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 62 [2019-11-20 05:06:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:06:12,434 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2019-11-20 05:06:12,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-20 05:06:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2019-11-20 05:06:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-20 05:06:12,435 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:06:12,435 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:06:12,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:12,635 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:06:12,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:06:12,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1720016189, now seen corresponding path program 17 times [2019-11-20 05:06:12,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:06:12,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361267032] [2019-11-20 05:06:12,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:06:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:06:14,138 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-11-20 05:06:14,388 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 53 [2019-11-20 05:06:14,559 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 56 [2019-11-20 05:06:14,851 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2019-11-20 05:06:15,040 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 56 [2019-11-20 05:06:15,200 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 45 [2019-11-20 05:06:15,412 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2019-11-20 05:06:15,632 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 59 [2019-11-20 05:06:15,811 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2019-11-20 05:06:16,047 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-11-20 05:06:16,307 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 62 [2019-11-20 05:06:16,515 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2019-11-20 05:06:16,788 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 61 [2019-11-20 05:06:17,081 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 64 [2019-11-20 05:06:17,311 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 54 [2019-11-20 05:06:17,528 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2019-11-20 05:06:17,767 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2019-11-20 05:06:17,947 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-11-20 05:06:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 25 proven. 195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:06:20,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361267032] [2019-11-20 05:06:20,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574150881] [2019-11-20 05:06:20,152 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:21,428 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-11-20 05:06:21,428 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:06:21,434 WARN L253 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 125 conjunts are in the unsatisfiable core [2019-11-20 05:06:21,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:06:21,451 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:06:21,451 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,460 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,463 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:06:21,463 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,471 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,471 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,471 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 05:06:21,517 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:06:21,517 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,526 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,526 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 05:06:21,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,629 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-11-20 05:06:21,629 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,647 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,648 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,648 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2019-11-20 05:06:21,760 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,761 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,762 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,762 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2019-11-20 05:06:21,763 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,775 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,775 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,775 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2019-11-20 05:06:21,893 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,893 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,894 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:21,897 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2019-11-20 05:06:21,897 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,911 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:21,911 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:21,911 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2019-11-20 05:06:22,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,052 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 77 [2019-11-20 05:06:22,052 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,068 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:22,068 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,069 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 05:06:22,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,223 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2019-11-20 05:06:22,223 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,241 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:22,241 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,241 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 05:06:22,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,399 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,399 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,401 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,403 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,405 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,412 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 95 [2019-11-20 05:06:22,412 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,434 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:22,434 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,435 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:87 [2019-11-20 05:06:22,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:22,633 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2019-11-20 05:06:22,633 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,658 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:22,658 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:22,658 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:96 [2019-11-20 05:06:23,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,105 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,106 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,106 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,107 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,108 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,110 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,111 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:23,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,128 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 111 [2019-11-20 05:06:23,128 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:23,156 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,156 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:98 [2019-11-20 05:06:23,420 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:23,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,447 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,448 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,449 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,450 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,451 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,456 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,459 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2019-11-20 05:06:23,459 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,483 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:23,484 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,484 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 05:06:23,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,747 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,749 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,750 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,750 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,752 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,752 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,753 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,754 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,754 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,755 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,756 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:23,756 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,765 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,766 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,766 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,767 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,768 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,768 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,769 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,771 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,771 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,772 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:23,773 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2019-11-20 05:06:23,774 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,798 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:23,798 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:23,798 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 05:06:24,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,098 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,099 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,101 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,102 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,102 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,103 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,105 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,106 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,106 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,107 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:24,108 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,108 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,110 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,110 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,128 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 112 [2019-11-20 05:06:24,129 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,157 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:24,157 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,157 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:99 [2019-11-20 05:06:24,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,462 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,464 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,465 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,465 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:24,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,467 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,467 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,468 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,470 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,471 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,471 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,472 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,474 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,475 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,475 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,476 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,478 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,479 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,481 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2019-11-20 05:06:24,481 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:24,505 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,506 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 05:06:24,833 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,837 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,838 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,838 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,839 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,840 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,840 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:24,841 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,842 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,842 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,843 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,844 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,844 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,845 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,846 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,846 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,848 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,849 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,849 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,851 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,851 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:24,863 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 112 [2019-11-20 05:06:24,863 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,887 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:24,888 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:24,888 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:99 [2019-11-20 05:06:25,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,251 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,252 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,256 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,257 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,257 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,258 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,259 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:25,259 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,260 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2019-11-20 05:06:25,272 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,298 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:25,299 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,299 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 05:06:25,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,673 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,673 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,677 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,680 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 107 [2019-11-20 05:06:25,680 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,702 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:25,702 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,702 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:91 [2019-11-20 05:06:25,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,916 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,916 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,922 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:25,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,923 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:25,936 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 111 [2019-11-20 05:06:25,936 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,969 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:25,969 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:25,969 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:106 [2019-11-20 05:06:26,168 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:26,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,185 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,185 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,188 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 114 [2019-11-20 05:06:26,189 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,214 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:26,214 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,214 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:112 [2019-11-20 05:06:26,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,435 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:26,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,446 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 111 [2019-11-20 05:06:26,447 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:26,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,475 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2019-11-20 05:06:26,707 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,737 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,739 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:26,740 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,740 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,741 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,743 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,744 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,744 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,745 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,747 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,747 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:26,749 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 117 [2019-11-20 05:06:26,749 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,775 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:26,775 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:26,775 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:134 [2019-11-20 05:06:27,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,034 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,034 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,038 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,038 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:27,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,044 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,049 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 122 [2019-11-20 05:06:27,050 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,076 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:27,076 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,076 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:162, output treesize:167 [2019-11-20 05:06:27,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,353 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:27,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,366 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 118 [2019-11-20 05:06:27,367 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,392 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:27,392 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,392 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:117 [2019-11-20 05:06:27,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,667 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,668 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:06:27,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,673 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,677 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:27,679 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 117 [2019-11-20 05:06:27,680 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,704 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:27,705 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:27,705 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:116 [2019-11-20 05:06:27,990 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2019-11-20 05:06:27,991 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:28,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:28,011 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:06:28,011 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:106, output treesize:91 [2019-11-20 05:06:28,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:06:28,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:06:28,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 61] total 117 [2019-11-20 05:06:28,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043616760] [2019-11-20 05:06:28,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 117 states [2019-11-20 05:06:28,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:06:28,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2019-11-20 05:06:28,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1909, Invalid=11663, Unknown=0, NotChecked=0, Total=13572 [2019-11-20 05:06:28,318 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 117 states. [2019-11-20 05:06:30,204 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-11-20 05:06:30,420 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2019-11-20 05:06:30,627 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-11-20 05:06:30,811 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-11-20 05:06:31,693 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-11-20 05:06:31,948 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-11-20 05:06:32,322 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-11-20 05:06:32,525 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-11-20 05:06:33,438 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2019-11-20 05:06:33,860 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-11-20 05:06:34,630 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2019-11-20 05:06:35,111 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 76 [2019-11-20 05:06:35,678 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 78 [2019-11-20 05:06:36,158 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-11-20 05:06:37,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:06:37,271 INFO L93 Difference]: Finished difference Result 183 states and 204 transitions. [2019-11-20 05:06:37,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2019-11-20 05:06:37,271 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 67 [2019-11-20 05:06:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:06:37,272 INFO L225 Difference]: With dead ends: 183 [2019-11-20 05:06:37,272 INFO L226 Difference]: Without dead ends: 131 [2019-11-20 05:06:37,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 9 SyntacticMatches, 7 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12784 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=3764, Invalid=24628, Unknown=0, NotChecked=0, Total=28392 [2019-11-20 05:06:37,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-20 05:06:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 108. [2019-11-20 05:06:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-20 05:06:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2019-11-20 05:06:37,292 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 67 [2019-11-20 05:06:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:06:37,293 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2019-11-20 05:06:37,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 117 states. [2019-11-20 05:06:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2019-11-20 05:06:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-20 05:06:37,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:06:37,293 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:06:37,493 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:37,494 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:06:37,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:06:37,494 INFO L82 PathProgramCache]: Analyzing trace with hash -688187037, now seen corresponding path program 10 times [2019-11-20 05:06:37,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:06:37,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763507583] [2019-11-20 05:06:37,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:06:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:06:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 49 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-20 05:06:37,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763507583] [2019-11-20 05:06:37,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960319651] [2019-11-20 05:06:37,763 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:37,830 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:06:37,831 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:06:37,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 05:06:37,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:06:37,842 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-11-20 05:06:37,842 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:37,847 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:37,847 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:37,847 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 05:06:37,944 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:37,944 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 82 [2019-11-20 05:06:37,944 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:37,971 INFO L567 ElimStorePlain]: treesize reduction 32, result has 65.6 percent of original size [2019-11-20 05:06:37,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:37,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:37,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:37,973 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:06:37,973 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:61 [2019-11-20 05:06:37,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:37,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:37,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,064 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,077 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:38,077 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 99 [2019-11-20 05:06:38,078 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,082 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:38,082 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,128 INFO L567 ElimStorePlain]: treesize reduction 32, result has 72.6 percent of original size [2019-11-20 05:06:38,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,130 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-11-20 05:06:38,130 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:85 [2019-11-20 05:06:38,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 05:06:38,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,345 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:38,346 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,355 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:38,355 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,377 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:38,377 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 102 [2019-11-20 05:06:38,378 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,382 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,383 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:38,383 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,473 INFO L567 ElimStorePlain]: treesize reduction 44, result has 76.6 percent of original size [2019-11-20 05:06:38,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2019-11-20 05:06:38,475 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:218, output treesize:144 [2019-11-20 05:06:38,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 05:06:38,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-20 05:06:38,784 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,790 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:38,791 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,800 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,815 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:38,815 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 99 [2019-11-20 05:06:38,815 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,822 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,827 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:38,827 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,833 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,838 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,839 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:38,839 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,845 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,850 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:38,850 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:38,856 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:38,856 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:38,986 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-11-20 05:06:38,986 INFO L567 ElimStorePlain]: treesize reduction 35, result has 85.1 percent of original size [2019-11-20 05:06:38,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,988 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 6 xjuncts. [2019-11-20 05:06:38,988 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:315, output treesize:200 [2019-11-20 05:06:38,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:38,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-20 05:06:39,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-11-20 05:06:39,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,431 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:39,431 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 99 [2019-11-20 05:06:39,431 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,446 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:39,446 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,460 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:39,460 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,468 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,474 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,475 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:39,475 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,488 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:39,488 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,501 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:39,501 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,514 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:39,514 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:39,521 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:39,521 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:39,701 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2019-11-20 05:06:39,702 INFO L567 ElimStorePlain]: treesize reduction 35, result has 88.0 percent of original size [2019-11-20 05:06:39,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,703 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 8 xjuncts. [2019-11-20 05:06:39,703 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:421, output treesize:256 [2019-11-20 05:06:39,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-11-20 05:06:39,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,131 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-11-20 05:06:40,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 10 terms [2019-11-20 05:06:40,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,293 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:40,293 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 99 [2019-11-20 05:06:40,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,311 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,311 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,329 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:40,329 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,344 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:40,345 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,363 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,363 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,372 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,380 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,380 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,381 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,396 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,396 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,405 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,411 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,411 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,426 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,426 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:40,434 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:40,435 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:40,670 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2019-11-20 05:06:40,670 INFO L567 ElimStorePlain]: treesize reduction 35, result has 89.9 percent of original size [2019-11-20 05:06:40,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 10 xjuncts. [2019-11-20 05:06:40,672 INFO L221 ElimStorePlain]: Needed 11 recursive calls to eliminate 10 variables, input treesize:527, output treesize:312 [2019-11-20 05:06:40,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 10 terms [2019-11-20 05:06:40,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:40,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:41,183 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 150 [2019-11-20 05:06:41,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2019-11-20 05:06:41,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,410 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,410 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,442 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2019-11-20 05:06:41,443 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,481 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,481 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,506 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,506 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,523 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,524 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,537 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,552 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:41,552 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 99 [2019-11-20 05:06:41,553 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,582 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,582 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,600 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2019-11-20 05:06:41,600 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,616 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,616 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,631 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,632 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,646 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,646 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:06:41,655 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 44 [2019-11-20 05:06:41,655 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:41,974 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 161 [2019-11-20 05:06:41,974 INFO L567 ElimStorePlain]: treesize reduction 35, result has 91.3 percent of original size [2019-11-20 05:06:41,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:41,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:41,976 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 12 xjuncts. [2019-11-20 05:06:41,976 INFO L221 ElimStorePlain]: Needed 13 recursive calls to eliminate 12 variables, input treesize:633, output treesize:368 [2019-11-20 05:06:41,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:41,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2019-11-20 05:06:42,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,621 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-20 05:06:42,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 14 terms [2019-11-20 05:06:42,637 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,645 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,645 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,652 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,652 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,680 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:06:42,681 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2019-11-20 05:06:42,681 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,690 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,691 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,699 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,699 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,708 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,709 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,720 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,720 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,725 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,725 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,729 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,729 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,733 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,733 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,737 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,737 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,740 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,740 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,743 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:06:42,743 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,762 INFO L567 ElimStorePlain]: treesize reduction 6, result has 83.8 percent of original size [2019-11-20 05:06:42,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,763 INFO L496 ElimStorePlain]: Start of recursive call 1: 15 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:06:42,763 INFO L221 ElimStorePlain]: Needed 15 recursive calls to eliminate 16 variables, input treesize:585, output treesize:19 [2019-11-20 05:06:42,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:06:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 52 proven. 57 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-11-20 05:06:42,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:06:42,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 42 [2019-11-20 05:06:42,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833368785] [2019-11-20 05:06:42,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-20 05:06:42,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:06:42,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-20 05:06:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1473, Unknown=0, NotChecked=0, Total=1722 [2019-11-20 05:06:42,988 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 42 states. [2019-11-20 05:06:44,030 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 51 [2019-11-20 05:06:44,432 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 53 [2019-11-20 05:06:45,073 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 28 [2019-11-20 05:06:46,126 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 36 [2019-11-20 05:06:46,388 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 37 [2019-11-20 05:06:47,159 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 36 [2019-11-20 05:06:47,387 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 157 [2019-11-20 05:06:48,523 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 67 [2019-11-20 05:06:49,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:06:49,024 INFO L93 Difference]: Finished difference Result 136 states and 148 transitions. [2019-11-20 05:06:49,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-11-20 05:06:49,025 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 69 [2019-11-20 05:06:49,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:06:49,025 INFO L225 Difference]: With dead ends: 136 [2019-11-20 05:06:49,025 INFO L226 Difference]: Without dead ends: 111 [2019-11-20 05:06:49,026 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2576 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1356, Invalid=7764, Unknown=0, NotChecked=0, Total=9120 [2019-11-20 05:06:49,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-20 05:06:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102. [2019-11-20 05:06:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 05:06:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2019-11-20 05:06:49,045 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 69 [2019-11-20 05:06:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:06:49,046 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2019-11-20 05:06:49,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-20 05:06:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2019-11-20 05:06:49,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-20 05:06:49,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:06:49,047 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:06:49,247 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:06:49,247 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:06:49,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:06:49,247 INFO L82 PathProgramCache]: Analyzing trace with hash 350761612, now seen corresponding path program 18 times [2019-11-20 05:06:49,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:06:49,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742496134] [2019-11-20 05:06:49,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:06:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:06:50,722 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 38 [2019-11-20 05:06:50,876 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2019-11-20 05:06:51,096 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 45 [2019-11-20 05:06:51,337 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 48 [2019-11-20 05:06:51,546 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 39 [2019-11-20 05:06:51,846 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 55 [2019-11-20 05:06:52,150 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 54 [2019-11-20 05:06:52,393 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 44 [2019-11-20 05:06:52,673 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 53 [2019-11-20 05:06:52,975 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 57 [2019-11-20 05:06:53,223 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 46 [2019-11-20 05:06:53,487 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 55 [2019-11-20 05:06:53,782 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 58 [2019-11-20 05:06:54,024 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 48 [2019-11-20 05:06:54,307 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 59 [2019-11-20 05:06:54,597 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 62 [2019-11-20 05:06:54,827 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 51 [2019-11-20 05:06:55,086 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 63 [2019-11-20 05:06:55,369 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 66 [2019-11-20 05:06:55,593 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 56 [2019-11-20 05:06:55,850 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2019-11-20 05:06:56,114 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 67 [2019-11-20 05:06:56,326 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 56 [2019-11-20 05:06:56,560 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2019-11-20 05:06:56,813 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-11-20 05:06:57,017 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-11-20 05:06:57,204 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-11-20 05:06:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 8 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:06:59,751 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742496134] [2019-11-20 05:06:59,751 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878565374] [2019-11-20 05:06:59,752 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:00,656 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2019-11-20 05:07:00,656 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:07:00,660 WARN L253 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 144 conjunts are in the unsatisfiable core [2019-11-20 05:07:00,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:07:00,666 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 05:07:00,666 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,675 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:00,675 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,675 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-11-20 05:07:00,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,729 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:07:00,729 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,739 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:00,740 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,740 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 05:07:00,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,853 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-11-20 05:07:00,853 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,865 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:00,866 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:00,866 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2019-11-20 05:07:00,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:00,998 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2019-11-20 05:07:00,998 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,012 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,012 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,012 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2019-11-20 05:07:01,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,150 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2019-11-20 05:07:01,150 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,166 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,166 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,166 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2019-11-20 05:07:01,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,321 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2019-11-20 05:07:01,321 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:76 [2019-11-20 05:07:01,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,503 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,506 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,510 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,511 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2019-11-20 05:07:01,512 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,534 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,534 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,534 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:82 [2019-11-20 05:07:01,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,714 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,714 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,716 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,716 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,719 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,721 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,727 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2019-11-20 05:07:01,727 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,751 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,752 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,752 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2019-11-20 05:07:01,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,945 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,946 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,946 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,953 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,955 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,957 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,959 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:01,964 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2019-11-20 05:07:01,964 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,991 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:01,991 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:01,991 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:100 [2019-11-20 05:07:02,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,210 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,212 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,225 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,228 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,228 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 119 [2019-11-20 05:07:02,229 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:02,288 INFO L567 ElimStorePlain]: treesize reduction 3, result has 97.4 percent of original size [2019-11-20 05:07:02,288 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:02,288 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:112 [2019-11-20 05:07:02,839 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,840 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,841 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,842 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,842 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,843 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,844 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,844 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,845 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,846 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,846 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,848 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,848 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,849 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,851 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,852 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:02,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,858 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,858 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,860 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,860 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,861 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:02,866 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 123 [2019-11-20 05:07:02,867 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:02,896 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:02,896 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:02,896 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:111 [2019-11-20 05:07:03,188 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,189 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,190 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,190 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,191 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,192 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,192 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,193 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,195 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:03,196 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,196 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,197 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,199 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,201 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,202 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,210 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,212 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,215 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 126 [2019-11-20 05:07:03,215 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,244 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:03,245 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,245 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:114 [2019-11-20 05:07:03,553 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,557 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,563 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,570 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:03,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,580 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2019-11-20 05:07:03,581 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,610 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:03,610 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,611 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:109 [2019-11-20 05:07:03,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,936 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,936 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,939 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,940 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,942 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,945 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,945 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,946 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,948 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:03,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,950 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,952 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,953 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,955 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,957 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,959 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,959 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:03,961 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2019-11-20 05:07:03,962 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,991 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:03,991 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:03,991 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:109 [2019-11-20 05:07:04,371 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,372 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,372 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,373 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,375 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,376 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,378 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,379 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,379 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,380 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,381 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,381 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,382 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,384 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,385 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:04,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,392 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,398 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 124 [2019-11-20 05:07:04,399 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:04,428 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:04,428 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:04,428 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:112 [2019-11-20 05:07:04,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,809 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,812 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,812 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,814 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,814 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,815 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,816 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,816 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,817 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,819 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,821 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,822 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,822 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,823 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,826 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,826 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,827 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:04,828 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 119 [2019-11-20 05:07:04,828 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:04,855 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:04,855 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:04,855 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:104 [2019-11-20 05:07:05,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,134 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,134 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,135 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,138 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:05,312 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-11-20 05:07:05,313 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:05,313 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 123 treesize of output 539 [2019-11-20 05:07:05,316 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:05,511 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2019-11-20 05:07:05,511 INFO L567 ElimStorePlain]: treesize reduction 462, result has 30.5 percent of original size [2019-11-20 05:07:05,511 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:05,511 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:203 [2019-11-20 05:07:06,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:06,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,075 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,076 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,078 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,079 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,085 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,092 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,094 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,095 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,098 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,101 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,102 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,103 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,105 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,106 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,107 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,110 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,115 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,232 INFO L237 Elim1Store]: Index analysis took 167 ms [2019-11-20 05:07:06,233 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 47 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 194 [2019-11-20 05:07:06,233 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,239 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:07:06,239 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,244 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:07:06,244 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,249 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:07:06,249 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,254 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 05:07:06,254 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,262 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:06,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,275 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,279 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,281 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,290 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,295 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:06,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,352 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 38 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 182 [2019-11-20 05:07:06,353 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,366 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,367 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,368 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,369 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,372 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,373 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,379 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,380 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,382 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,384 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,401 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,570 INFO L237 Elim1Store]: Index analysis took 210 ms [2019-11-20 05:07:06,624 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:06,625 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 9 case distinctions, treesize of input 188 treesize of output 376 [2019-11-20 05:07:06,626 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:06,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,648 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:06,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:06,660 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 182 [2019-11-20 05:07:06,661 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:07,082 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2019-11-20 05:07:07,082 INFO L567 ElimStorePlain]: treesize reduction 216, result has 70.5 percent of original size [2019-11-20 05:07:07,083 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-11-20 05:07:07,083 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1457, output treesize:515 [2019-11-20 05:07:07,399 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-20 05:07:07,714 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-20 05:07:08,104 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-11-20 05:07:08,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:08,113 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,159 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,188 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,189 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,191 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,192 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,193 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,195 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,197 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,199 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,356 INFO L237 Elim1Store]: Index analysis took 244 ms [2019-11-20 05:07:08,416 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:08,416 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 61 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 10 case distinctions, treesize of input 203 treesize of output 409 [2019-11-20 05:07:08,417 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:08,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,423 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:08,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,447 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,447 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:08,448 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 149 [2019-11-20 05:07:08,449 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:08,704 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2019-11-20 05:07:08,704 INFO L567 ElimStorePlain]: treesize reduction 171, result has 63.4 percent of original size [2019-11-20 05:07:08,704 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-20 05:07:08,704 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:355, output treesize:296 [2019-11-20 05:07:08,978 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-20 05:07:08,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:09,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:09,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,616 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:09,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,630 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 123 [2019-11-20 05:07:09,631 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:09,660 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:09,660 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:09,660 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:132, output treesize:119 [2019-11-20 05:07:09,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,911 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,913 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,915 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:09,916 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,923 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:09,935 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 126 [2019-11-20 05:07:09,936 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:09,966 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:09,966 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:09,966 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:125 [2019-11-20 05:07:10,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,228 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,229 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,231 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,235 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,249 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:10,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,256 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 123 [2019-11-20 05:07:10,271 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,301 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:10,301 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,302 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:124 [2019-11-20 05:07:10,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,583 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,587 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:10,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,602 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 124 [2019-11-20 05:07:10,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,632 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:10,632 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:117 [2019-11-20 05:07:10,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,913 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,915 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,916 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,918 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,923 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,923 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,925 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:10,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,926 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,930 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,933 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,936 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,937 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,938 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:10,939 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 123 [2019-11-20 05:07:10,939 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,969 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:10,969 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:10,969 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:117 [2019-11-20 05:07:11,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,275 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,279 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,281 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,289 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:07:11,290 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,293 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,293 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,294 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,296 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,299 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 126 [2019-11-20 05:07:11,299 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:11,330 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:11,330 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:11,330 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:120 [2019-11-20 05:07:11,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,660 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 121 [2019-11-20 05:07:11,661 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:11,715 INFO L567 ElimStorePlain]: treesize reduction 3, result has 97.3 percent of original size [2019-11-20 05:07:11,715 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:11,715 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:110 [2019-11-20 05:07:11,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,889 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,889 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,891 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,891 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,892 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,893 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,893 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,894 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,897 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:11,930 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:11,930 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 118 treesize of output 256 [2019-11-20 05:07:11,931 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:12,008 INFO L567 ElimStorePlain]: treesize reduction 230, result has 35.9 percent of original size [2019-11-20 05:07:12,008 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:07:12,008 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:135, output treesize:129 [2019-11-20 05:07:12,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:12,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:12,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:07:12,428 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:07:12,428 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 39 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 17 case distinctions, treesize of input 119 treesize of output 314 [2019-11-20 05:07:12,430 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:07:12,526 INFO L567 ElimStorePlain]: treesize reduction 510, result has 17.7 percent of original size [2019-11-20 05:07:12,526 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:07:12,527 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:136, output treesize:110 [2019-11-20 05:07:13,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:07:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:07:13,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:07:13,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 70] total 132 [2019-11-20 05:07:13,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286675855] [2019-11-20 05:07:13,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 132 states [2019-11-20 05:07:13,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:07:13,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2019-11-20 05:07:13,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2159, Invalid=15133, Unknown=0, NotChecked=0, Total=17292 [2019-11-20 05:07:13,351 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand 132 states. [2019-11-20 05:07:20,654 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 76 [2019-11-20 05:07:21,167 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 82 [2019-11-20 05:07:21,749 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 84 [2019-11-20 05:07:22,155 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-11-20 05:07:22,358 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2019-11-20 05:07:22,703 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-11-20 05:07:23,407 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 64 [2019-11-20 05:07:24,174 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 68 [2019-11-20 05:07:25,316 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 85 [2019-11-20 05:07:25,557 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-11-20 05:07:26,036 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 61 [2019-11-20 05:07:26,280 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-11-20 05:07:26,540 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2019-11-20 05:07:26,991 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 60 [2019-11-20 05:07:27,389 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2019-11-20 05:07:27,710 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 61 [2019-11-20 05:07:28,075 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-11-20 05:07:30,236 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 64 [2019-11-20 05:07:30,518 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2019-11-20 05:07:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:07:31,492 INFO L93 Difference]: Finished difference Result 240 states and 267 transitions. [2019-11-20 05:07:31,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2019-11-20 05:07:31,492 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 74 [2019-11-20 05:07:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:07:31,493 INFO L225 Difference]: With dead ends: 240 [2019-11-20 05:07:31,493 INFO L226 Difference]: Without dead ends: 181 [2019-11-20 05:07:31,494 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 7 SyntacticMatches, 8 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20527 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=5332, Invalid=41540, Unknown=0, NotChecked=0, Total=46872 [2019-11-20 05:07:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-20 05:07:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 122. [2019-11-20 05:07:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-20 05:07:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2019-11-20 05:07:31,526 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 74 [2019-11-20 05:07:31,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:07:31,526 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2019-11-20 05:07:31,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 132 states. [2019-11-20 05:07:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2019-11-20 05:07:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-20 05:07:31,527 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:07:31,527 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:07:31,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:31,731 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:07:31,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:07:31,731 INFO L82 PathProgramCache]: Analyzing trace with hash -229056025, now seen corresponding path program 11 times [2019-11-20 05:07:31,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:07:31,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362698639] [2019-11-20 05:07:31,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:07:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:07:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 66 proven. 79 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 05:07:31,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362698639] [2019-11-20 05:07:31,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777854669] [2019-11-20 05:07:31,984 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:45,832 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2019-11-20 05:07:45,832 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:07:45,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-20 05:07:45,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:07:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 145 proven. 64 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-20 05:07:46,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:07:46,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 32 [2019-11-20 05:07:46,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332638834] [2019-11-20 05:07:46,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-11-20 05:07:46,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:07:46,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-11-20 05:07:46,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2019-11-20 05:07:46,043 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 32 states. [2019-11-20 05:07:46,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:07:46,393 INFO L93 Difference]: Finished difference Result 200 states and 215 transitions. [2019-11-20 05:07:46,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-20 05:07:46,393 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 75 [2019-11-20 05:07:46,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:07:46,394 INFO L225 Difference]: With dead ends: 200 [2019-11-20 05:07:46,394 INFO L226 Difference]: Without dead ends: 144 [2019-11-20 05:07:46,395 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=398, Invalid=1242, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 05:07:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-20 05:07:46,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 121. [2019-11-20 05:07:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-20 05:07:46,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 132 transitions. [2019-11-20 05:07:46,437 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 132 transitions. Word has length 75 [2019-11-20 05:07:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:07:46,438 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 132 transitions. [2019-11-20 05:07:46,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-11-20 05:07:46,438 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 132 transitions. [2019-11-20 05:07:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-11-20 05:07:46,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:07:46,439 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:07:46,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:46,655 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:07:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:07:46,655 INFO L82 PathProgramCache]: Analyzing trace with hash -2019475348, now seen corresponding path program 12 times [2019-11-20 05:07:46,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:07:46,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403740231] [2019-11-20 05:07:46,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:07:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:07:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 64 proven. 153 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-20 05:07:46,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403740231] [2019-11-20 05:07:46,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960991240] [2019-11-20 05:07:46,952 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:48,446 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2019-11-20 05:07:48,447 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:07:48,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-20 05:07:48,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:07:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 106 proven. 100 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-20 05:07:48,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:07:48,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 36 [2019-11-20 05:07:48,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701113473] [2019-11-20 05:07:48,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-11-20 05:07:48,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:07:48,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-11-20 05:07:48,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2019-11-20 05:07:48,663 INFO L87 Difference]: Start difference. First operand 121 states and 132 transitions. Second operand 36 states. [2019-11-20 05:07:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:07:49,354 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2019-11-20 05:07:49,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-20 05:07:49,354 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 76 [2019-11-20 05:07:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:07:49,355 INFO L225 Difference]: With dead ends: 158 [2019-11-20 05:07:49,355 INFO L226 Difference]: Without dead ends: 131 [2019-11-20 05:07:49,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=684, Invalid=2396, Unknown=0, NotChecked=0, Total=3080 [2019-11-20 05:07:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-20 05:07:49,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 112. [2019-11-20 05:07:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-20 05:07:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2019-11-20 05:07:49,379 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 76 [2019-11-20 05:07:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:07:49,379 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2019-11-20 05:07:49,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-11-20 05:07:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2019-11-20 05:07:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 05:07:49,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:07:49,380 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:07:49,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:07:49,580 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:07:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:07:49,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2122516629, now seen corresponding path program 19 times [2019-11-20 05:07:49,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:07:49,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294748957] [2019-11-20 05:07:49,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:07:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:07:52,022 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 54 [2019-11-20 05:07:52,182 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2019-11-20 05:07:52,380 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2019-11-20 05:07:52,575 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 60 [2019-11-20 05:07:52,937 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 62 [2019-11-20 05:07:53,167 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2019-11-20 05:07:53,364 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 48 [2019-11-20 05:07:53,614 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 58 [2019-11-20 05:07:53,870 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2019-11-20 05:07:54,076 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 51 [2019-11-20 05:07:54,319 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 60 [2019-11-20 05:07:54,647 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2019-11-20 05:07:54,873 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 58 [2019-11-20 05:07:55,186 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 64 [2019-11-20 05:07:55,520 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 68 [2019-11-20 05:07:55,796 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 56 [2019-11-20 05:07:56,142 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 66 [2019-11-20 05:07:56,514 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 70 [2019-11-20 05:07:56,835 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 59 [2019-11-20 05:07:57,121 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2019-11-20 05:07:57,431 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2019-11-20 05:07:57,658 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-11-20 05:07:57,873 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2019-11-20 05:07:58,043 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-11-20 05:07:58,238 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-11-20 05:07:58,428 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 56 [2019-11-20 05:07:58,629 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2019-11-20 05:07:58,828 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2019-11-20 05:07:59,063 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2019-11-20 05:07:59,284 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 51 [2019-11-20 05:08:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:01,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294748957] [2019-11-20 05:08:01,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424364015] [2019-11-20 05:08:01,907 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:08:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:08:01,998 WARN L253 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 147 conjunts are in the unsatisfiable core [2019-11-20 05:08:02,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:08:02,005 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:08:02,005 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,013 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:02,016 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:08:02,016 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,023 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:02,024 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,024 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 05:08:02,104 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:08:02,105 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:02,114 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,114 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 05:08:02,289 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:02,289 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2019-11-20 05:08:02,289 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,315 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 05:08:02,315 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,315 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 05:08:02,526 INFO L343 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2019-11-20 05:08:02,526 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 71 [2019-11-20 05:08:02,527 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,558 INFO L567 ElimStorePlain]: treesize reduction 24, result has 66.7 percent of original size [2019-11-20 05:08:02,558 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,558 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 05:08:02,798 INFO L343 Elim1Store]: treesize reduction 122, result has 31.5 percent of original size [2019-11-20 05:08:02,798 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 86 [2019-11-20 05:08:02,798 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,834 INFO L567 ElimStorePlain]: treesize reduction 24, result has 71.4 percent of original size [2019-11-20 05:08:02,835 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:02,835 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 05:08:03,114 INFO L343 Elim1Store]: treesize reduction 210, result has 24.5 percent of original size [2019-11-20 05:08:03,114 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 101 [2019-11-20 05:08:03,114 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,155 INFO L567 ElimStorePlain]: treesize reduction 24, result has 75.0 percent of original size [2019-11-20 05:08:03,156 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,156 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2019-11-20 05:08:03,492 INFO L343 Elim1Store]: treesize reduction 316, result has 20.2 percent of original size [2019-11-20 05:08:03,492 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 116 [2019-11-20 05:08:03,493 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,539 INFO L567 ElimStorePlain]: treesize reduction 24, result has 77.8 percent of original size [2019-11-20 05:08:03,539 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,539 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2019-11-20 05:08:03,895 INFO L343 Elim1Store]: treesize reduction 440, result has 17.3 percent of original size [2019-11-20 05:08:03,896 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 131 [2019-11-20 05:08:03,896 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,947 INFO L567 ElimStorePlain]: treesize reduction 24, result has 80.0 percent of original size [2019-11-20 05:08:03,947 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:03,948 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:96 [2019-11-20 05:08:04,345 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 48 [2019-11-20 05:08:04,346 INFO L343 Elim1Store]: treesize reduction 582, result has 15.2 percent of original size [2019-11-20 05:08:04,346 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 102 treesize of output 146 [2019-11-20 05:08:04,347 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:04,395 INFO L567 ElimStorePlain]: treesize reduction 24, result has 81.8 percent of original size [2019-11-20 05:08:04,395 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:04,396 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:108 [2019-11-20 05:08:04,805 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 53 [2019-11-20 05:08:04,806 INFO L343 Elim1Store]: treesize reduction 742, result has 13.5 percent of original size [2019-11-20 05:08:04,806 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 114 treesize of output 161 [2019-11-20 05:08:04,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:04,859 INFO L567 ElimStorePlain]: treesize reduction 24, result has 83.3 percent of original size [2019-11-20 05:08:04,859 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:04,859 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:120 [2019-11-20 05:08:05,354 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 58 [2019-11-20 05:08:05,354 INFO L343 Elim1Store]: treesize reduction 920, result has 12.2 percent of original size [2019-11-20 05:08:05,355 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 126 treesize of output 176 [2019-11-20 05:08:05,355 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:05,419 INFO L567 ElimStorePlain]: treesize reduction 24, result has 84.9 percent of original size [2019-11-20 05:08:05,419 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:05,420 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:135 [2019-11-20 05:08:07,060 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 05:08:07,061 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 05:08:07,061 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 132 treesize of output 597 [2019-11-20 05:08:07,064 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:07,229 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2019-11-20 05:08:07,230 INFO L567 ElimStorePlain]: treesize reduction 617, result has 15.7 percent of original size [2019-11-20 05:08:07,230 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:07,230 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:115 [2019-11-20 05:08:08,430 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 124 [2019-11-20 05:08:08,430 INFO L343 Elim1Store]: treesize reduction 625, result has 44.8 percent of original size [2019-11-20 05:08:08,430 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 137 treesize of output 564 [2019-11-20 05:08:08,432 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:08,539 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 63 [2019-11-20 05:08:08,540 INFO L567 ElimStorePlain]: treesize reduction 281, result has 28.9 percent of original size [2019-11-20 05:08:08,540 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:08,540 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:114 [2019-11-20 05:08:09,604 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 05:08:09,608 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 05:08:09,609 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 132 treesize of output 597 [2019-11-20 05:08:09,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:09,769 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 60 [2019-11-20 05:08:09,770 INFO L567 ElimStorePlain]: treesize reduction 317, result has 25.6 percent of original size [2019-11-20 05:08:09,770 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:09,770 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:109 [2019-11-20 05:08:11,084 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 05:08:11,084 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 05:08:11,085 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 132 treesize of output 597 [2019-11-20 05:08:11,088 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:11,264 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2019-11-20 05:08:11,264 INFO L567 ElimStorePlain]: treesize reduction 619, result has 15.4 percent of original size [2019-11-20 05:08:11,264 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:11,264 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:113 [2019-11-20 05:08:12,621 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 122 [2019-11-20 05:08:12,622 INFO L343 Elim1Store]: treesize reduction 607, result has 45.1 percent of original size [2019-11-20 05:08:12,622 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 135 treesize of output 554 [2019-11-20 05:08:12,624 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:12,771 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-11-20 05:08:12,771 INFO L567 ElimStorePlain]: treesize reduction 291, result has 28.1 percent of original size [2019-11-20 05:08:12,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:12,771 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:114 [2019-11-20 05:08:13,885 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 115 [2019-11-20 05:08:13,885 INFO L343 Elim1Store]: treesize reduction 692, result has 39.7 percent of original size [2019-11-20 05:08:13,886 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 138 treesize of output 511 [2019-11-20 05:08:13,887 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:14,009 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2019-11-20 05:08:14,010 INFO L567 ElimStorePlain]: treesize reduction 495, result has 19.4 percent of original size [2019-11-20 05:08:14,010 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:14,010 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:151, output treesize:119 [2019-11-20 05:08:15,281 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 108 [2019-11-20 05:08:15,281 INFO L343 Elim1Store]: treesize reduction 777, result has 34.7 percent of original size [2019-11-20 05:08:15,282 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 141 treesize of output 468 [2019-11-20 05:08:15,284 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:15,422 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2019-11-20 05:08:15,422 INFO L567 ElimStorePlain]: treesize reduction 233, result has 33.6 percent of original size [2019-11-20 05:08:15,423 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:15,423 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:118 [2019-11-20 05:08:16,849 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 05:08:16,849 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 05:08:16,850 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 132 treesize of output 597 [2019-11-20 05:08:16,852 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:17,043 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2019-11-20 05:08:17,044 INFO L567 ElimStorePlain]: treesize reduction 619, result has 15.4 percent of original size [2019-11-20 05:08:17,044 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:17,044 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:113 [2019-11-20 05:08:18,336 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 122 [2019-11-20 05:08:18,336 INFO L343 Elim1Store]: treesize reduction 607, result has 45.1 percent of original size [2019-11-20 05:08:18,337 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 135 treesize of output 554 [2019-11-20 05:08:18,339 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:18,471 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 62 [2019-11-20 05:08:18,471 INFO L567 ElimStorePlain]: treesize reduction 557, result has 17.2 percent of original size [2019-11-20 05:08:18,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:18,472 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:116 [2019-11-20 05:08:19,248 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 48 [2019-11-20 05:08:19,248 INFO L343 Elim1Store]: treesize reduction 768, result has 9.4 percent of original size [2019-11-20 05:08:19,248 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 54 case distinctions, treesize of input 117 treesize of output 131 [2019-11-20 05:08:19,249 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:19,304 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:19,304 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:19,305 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:106 [2019-11-20 05:08:19,929 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 05:08:19,929 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 05:08:19,929 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 121 treesize of output 280 [2019-11-20 05:08:19,931 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:20,022 INFO L567 ElimStorePlain]: treesize reduction 248, result has 32.1 percent of original size [2019-11-20 05:08:20,022 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:20,022 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:117 [2019-11-20 05:08:20,731 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 05:08:20,731 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 05:08:20,732 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 125 treesize of output 280 [2019-11-20 05:08:20,734 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:20,829 INFO L567 ElimStorePlain]: treesize reduction 244, result has 33.9 percent of original size [2019-11-20 05:08:20,830 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:20,830 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:125 [2019-11-20 05:08:21,575 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 05:08:21,575 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 05:08:21,575 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 133 treesize of output 282 [2019-11-20 05:08:21,577 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:21,673 INFO L567 ElimStorePlain]: treesize reduction 296, result has 29.5 percent of original size [2019-11-20 05:08:21,673 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:21,674 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:124 [2019-11-20 05:08:22,554 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 117 [2019-11-20 05:08:22,554 INFO L343 Elim1Store]: treesize reduction 539, result has 34.7 percent of original size [2019-11-20 05:08:22,555 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 1 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 66 case distinctions, treesize of input 137 treesize of output 443 [2019-11-20 05:08:22,557 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:22,679 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 66 [2019-11-20 05:08:22,680 INFO L567 ElimStorePlain]: treesize reduction 516, result has 20.0 percent of original size [2019-11-20 05:08:22,680 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:22,680 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:129 [2019-11-20 05:08:23,776 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 160 [2019-11-20 05:08:23,777 INFO L343 Elim1Store]: treesize reduction 574, result has 43.1 percent of original size [2019-11-20 05:08:23,777 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 78 case distinctions, treesize of input 142 treesize of output 603 [2019-11-20 05:08:23,781 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:23,933 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 65 [2019-11-20 05:08:23,933 INFO L567 ElimStorePlain]: treesize reduction 961, result has 12.9 percent of original size [2019-11-20 05:08:23,933 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:23,934 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:142 [2019-11-20 05:08:24,969 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 184 [2019-11-20 05:08:24,970 INFO L343 Elim1Store]: treesize reduction 521, result has 50.1 percent of original size [2019-11-20 05:08:24,970 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 78 case distinctions, treesize of input 155 treesize of output 696 [2019-11-20 05:08:24,976 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:25,174 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 68 [2019-11-20 05:08:25,174 INFO L567 ElimStorePlain]: treesize reduction 1207, result has 11.3 percent of original size [2019-11-20 05:08:25,174 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:25,175 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:153 [2019-11-20 05:08:26,294 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 165 [2019-11-20 05:08:26,295 INFO L343 Elim1Store]: treesize reduction 427, result has 52.1 percent of original size [2019-11-20 05:08:26,295 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 1 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 66 case distinctions, treesize of input 158 treesize of output 628 [2019-11-20 05:08:26,301 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:26,469 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 66 [2019-11-20 05:08:26,469 INFO L567 ElimStorePlain]: treesize reduction 676, result has 16.6 percent of original size [2019-11-20 05:08:26,469 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:26,469 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:171, output treesize:135 [2019-11-20 05:08:27,260 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 05:08:27,260 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 05:08:27,261 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 136 treesize of output 283 [2019-11-20 05:08:27,263 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:27,361 INFO L567 ElimStorePlain]: treesize reduction 334, result has 27.4 percent of original size [2019-11-20 05:08:27,361 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:27,361 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:126 [2019-11-20 05:08:28,329 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 117 [2019-11-20 05:08:28,329 INFO L343 Elim1Store]: treesize reduction 539, result has 34.7 percent of original size [2019-11-20 05:08:28,330 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 1 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 66 case distinctions, treesize of input 139 treesize of output 443 [2019-11-20 05:08:28,334 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:28,465 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 66 [2019-11-20 05:08:28,466 INFO L567 ElimStorePlain]: treesize reduction 536, result has 19.4 percent of original size [2019-11-20 05:08:28,466 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:08:28,466 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:152, output treesize:129 [2019-11-20 05:08:29,040 INFO L343 Elim1Store]: treesize reduction 522, result has 0.2 percent of original size [2019-11-20 05:08:29,040 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 134 treesize of output 134 [2019-11-20 05:08:29,041 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:08:29,072 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:08:29,073 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:08:29,073 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:144, output treesize:112 [2019-11-20 05:08:29,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:08:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:29,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:08:29,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 75] total 143 [2019-11-20 05:08:29,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534142491] [2019-11-20 05:08:29,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 143 states [2019-11-20 05:08:29,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:08:29,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2019-11-20 05:08:29,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=19082, Unknown=0, NotChecked=0, Total=20306 [2019-11-20 05:08:29,642 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand 143 states. [2019-11-20 05:08:34,204 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-11-20 05:08:34,600 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-11-20 05:08:35,057 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-11-20 05:08:38,294 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 68 [2019-11-20 05:08:38,719 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2019-11-20 05:08:39,321 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2019-11-20 05:08:39,779 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 65 [2019-11-20 05:08:40,197 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 68 [2019-11-20 05:08:40,739 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 74 [2019-11-20 05:08:41,285 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 79 [2019-11-20 05:08:41,805 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 81 [2019-11-20 05:08:42,420 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2019-11-20 05:08:42,973 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2019-11-20 05:08:43,472 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 70 [2019-11-20 05:08:44,147 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 78 [2019-11-20 05:08:44,734 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2019-11-20 05:08:45,265 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2019-11-20 05:08:45,909 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 78 [2019-11-20 05:08:46,590 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2019-11-20 05:08:47,265 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 87 [2019-11-20 05:08:48,155 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 83 [2019-11-20 05:08:48,830 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 90 [2019-11-20 05:08:49,461 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2019-11-20 05:08:50,238 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 82 [2019-11-20 05:08:50,899 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 91 [2019-11-20 05:08:51,492 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2019-11-20 05:08:52,259 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 85 [2019-11-20 05:08:52,818 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-11-20 05:08:53,371 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2019-11-20 05:08:53,999 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2019-11-20 05:08:54,386 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 97 [2019-11-20 05:08:55,133 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 97 [2019-11-20 05:08:55,462 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-11-20 05:08:56,806 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 89 [2019-11-20 05:08:57,167 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2019-11-20 05:08:57,743 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2019-11-20 05:08:58,159 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2019-11-20 05:08:58,708 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2019-11-20 05:08:59,085 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2019-11-20 05:09:00,224 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2019-11-20 05:09:00,585 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-11-20 05:09:01,096 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2019-11-20 05:09:01,894 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-11-20 05:09:02,280 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2019-11-20 05:09:03,521 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2019-11-20 05:09:04,421 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2019-11-20 05:09:06,141 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 82 [2019-11-20 05:09:06,783 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 77 [2019-11-20 05:09:07,115 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2019-11-20 05:09:07,756 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 76 [2019-11-20 05:09:08,706 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 68 [2019-11-20 05:09:09,582 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 63 [2019-11-20 05:09:10,527 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 66 [2019-11-20 05:09:11,445 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 65 [2019-11-20 05:09:12,212 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 68 [2019-11-20 05:09:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:16,355 INFO L93 Difference]: Finished difference Result 294 states and 333 transitions. [2019-11-20 05:09:16,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-11-20 05:09:16,355 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 81 [2019-11-20 05:09:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:16,357 INFO L225 Difference]: With dead ends: 294 [2019-11-20 05:09:16,357 INFO L226 Difference]: Without dead ends: 250 [2019-11-20 05:09:16,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 9 SyntacticMatches, 9 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23936 ImplicationChecksByTransitivity, 60.0s TimeCoverageRelationStatistics Valid=5806, Invalid=68996, Unknown=0, NotChecked=0, Total=74802 [2019-11-20 05:09:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-11-20 05:09:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 164. [2019-11-20 05:09:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-20 05:09:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2019-11-20 05:09:16,413 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 81 [2019-11-20 05:09:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:16,413 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2019-11-20 05:09:16,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 143 states. [2019-11-20 05:09:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2019-11-20 05:09:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-11-20 05:09:16,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:16,414 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:09:16,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:16,614 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:09:16,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:16,615 INFO L82 PathProgramCache]: Analyzing trace with hash -640335440, now seen corresponding path program 13 times [2019-11-20 05:09:16,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:16,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275527660] [2019-11-20 05:09:16,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 83 proven. 98 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-11-20 05:09:16,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275527660] [2019-11-20 05:09:16,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504763869] [2019-11-20 05:09:16,921 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:16,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 05:09:16,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:09:17,236 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 173 proven. 81 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-11-20 05:09:17,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:09:17,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2019-11-20 05:09:17,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609128045] [2019-11-20 05:09:17,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 05:09:17,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:17,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 05:09:17,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 05:09:17,238 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand 34 states. [2019-11-20 05:09:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:17,708 INFO L93 Difference]: Finished difference Result 226 states and 247 transitions. [2019-11-20 05:09:17,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 05:09:17,709 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 82 [2019-11-20 05:09:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:17,710 INFO L225 Difference]: With dead ends: 226 [2019-11-20 05:09:17,710 INFO L226 Difference]: Without dead ends: 165 [2019-11-20 05:09:17,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1438, Unknown=0, NotChecked=0, Total=1892 [2019-11-20 05:09:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-20 05:09:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 134. [2019-11-20 05:09:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-20 05:09:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2019-11-20 05:09:17,755 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 82 [2019-11-20 05:09:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:17,755 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2019-11-20 05:09:17,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 05:09:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2019-11-20 05:09:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-20 05:09:17,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:17,757 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:09:17,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:17,960 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:09:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:17,961 INFO L82 PathProgramCache]: Analyzing trace with hash 424218669, now seen corresponding path program 20 times [2019-11-20 05:09:17,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:17,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186447839] [2019-11-20 05:09:17,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 102 proven. 119 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 05:09:18,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186447839] [2019-11-20 05:09:18,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728564609] [2019-11-20 05:09:18,317 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:18,408 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:09:18,408 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:09:18,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-20 05:09:18,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:09:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 121 proven. 100 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 05:09:18,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:09:18,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 37 [2019-11-20 05:09:18,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170397093] [2019-11-20 05:09:18,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-11-20 05:09:18,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:18,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-11-20 05:09:18,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2019-11-20 05:09:18,913 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand 37 states. [2019-11-20 05:09:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:19,623 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2019-11-20 05:09:19,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-20 05:09:19,623 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 83 [2019-11-20 05:09:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:19,624 INFO L225 Difference]: With dead ends: 237 [2019-11-20 05:09:19,624 INFO L226 Difference]: Without dead ends: 128 [2019-11-20 05:09:19,625 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=537, Invalid=1719, Unknown=0, NotChecked=0, Total=2256 [2019-11-20 05:09:19,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-20 05:09:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 111. [2019-11-20 05:09:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 05:09:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2019-11-20 05:09:19,669 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 120 transitions. Word has length 83 [2019-11-20 05:09:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:19,669 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 120 transitions. [2019-11-20 05:09:19,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-11-20 05:09:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 120 transitions. [2019-11-20 05:09:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-20 05:09:19,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:19,670 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:09:19,870 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:19,870 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:09:19,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1468785459, now seen corresponding path program 21 times [2019-11-20 05:09:19,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:19,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549592046] [2019-11-20 05:09:19,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 81 proven. 185 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-20 05:09:20,261 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549592046] [2019-11-20 05:09:20,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865106397] [2019-11-20 05:09:20,262 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:21,982 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-11-20 05:09:21,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:09:21,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-20 05:09:21,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:09:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 128 proven. 121 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-11-20 05:09:22,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:09:22,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 27] total 39 [2019-11-20 05:09:22,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476164337] [2019-11-20 05:09:22,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-20 05:09:22,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:22,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-20 05:09:22,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1123, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 05:09:22,342 INFO L87 Difference]: Start difference. First operand 111 states and 120 transitions. Second operand 39 states. [2019-11-20 05:09:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:23,330 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2019-11-20 05:09:23,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-20 05:09:23,330 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 83 [2019-11-20 05:09:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:23,331 INFO L225 Difference]: With dead ends: 123 [2019-11-20 05:09:23,331 INFO L226 Difference]: Without dead ends: 97 [2019-11-20 05:09:23,332 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2019-11-20 05:09:23,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-20 05:09:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2019-11-20 05:09:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-20 05:09:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2019-11-20 05:09:23,369 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 83 [2019-11-20 05:09:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:23,369 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2019-11-20 05:09:23,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-20 05:09:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2019-11-20 05:09:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-20 05:09:23,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:23,370 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:09:23,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:23,576 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:09:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:23,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1717398420, now seen corresponding path program 22 times [2019-11-20 05:09:23,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:23,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287782809] [2019-11-20 05:09:23,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:25,824 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2019-11-20 05:09:26,004 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-11-20 05:09:26,388 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 51 [2019-11-20 05:09:26,655 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 54 [2019-11-20 05:09:26,845 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-11-20 05:09:27,082 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 52 [2019-11-20 05:09:27,346 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 55 [2019-11-20 05:09:27,557 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-11-20 05:09:27,828 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 56 [2019-11-20 05:09:28,124 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 58 [2019-11-20 05:09:28,367 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2019-11-20 05:09:28,691 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-11-20 05:09:29,047 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 62 [2019-11-20 05:09:29,324 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 53 [2019-11-20 05:09:29,682 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 63 [2019-11-20 05:09:30,070 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 66 [2019-11-20 05:09:30,381 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 55 [2019-11-20 05:09:30,798 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 65 [2019-11-20 05:09:31,262 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-11-20 05:09:31,615 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 58 [2019-11-20 05:09:32,077 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 68 [2019-11-20 05:09:32,568 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 71 [2019-11-20 05:09:32,961 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 60 [2019-11-20 05:09:33,469 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2019-11-20 05:09:34,009 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2019-11-20 05:09:34,440 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2019-11-20 05:09:34,788 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2019-11-20 05:09:35,194 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2019-11-20 05:09:35,501 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-11-20 05:09:35,804 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2019-11-20 05:09:36,051 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2019-11-20 05:09:36,276 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2019-11-20 05:09:36,489 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2019-11-20 05:09:36,740 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2019-11-20 05:09:36,989 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2019-11-20 05:09:37,255 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-11-20 05:09:37,533 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 56 [2019-11-20 05:09:37,775 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2019-11-20 05:09:38,014 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2019-11-20 05:09:38,249 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2019-11-20 05:09:38,486 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-11-20 05:09:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:09:41,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287782809] [2019-11-20 05:09:41,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334438454] [2019-11-20 05:09:41,254 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:09:41,388 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 05:09:41,388 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:09:41,392 WARN L253 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 153 conjunts are in the unsatisfiable core [2019-11-20 05:09:41,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:09:41,412 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:09:41,413 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,435 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:41,439 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 11 treesize of output 7 [2019-11-20 05:09:41,440 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:41,451 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,452 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 05:09:41,592 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2019-11-20 05:09:41,592 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,606 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:41,606 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,606 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 05:09:41,931 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:41,932 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2019-11-20 05:09:41,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:41,983 INFO L567 ElimStorePlain]: treesize reduction 36, result has 57.1 percent of original size [2019-11-20 05:09:41,984 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:41,984 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2019-11-20 05:09:42,388 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:42,388 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 138 [2019-11-20 05:09:42,389 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:42,465 INFO L567 ElimStorePlain]: treesize reduction 72, result has 47.1 percent of original size [2019-11-20 05:09:42,465 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:42,465 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:64 [2019-11-20 05:09:42,930 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:42,930 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 220 [2019-11-20 05:09:42,930 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:43,018 INFO L567 ElimStorePlain]: treesize reduction 108, result has 42.6 percent of original size [2019-11-20 05:09:43,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:43,018 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:84, output treesize:80 [2019-11-20 05:09:43,448 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:43,448 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 318 [2019-11-20 05:09:43,449 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:43,547 INFO L567 ElimStorePlain]: treesize reduction 144, result has 40.0 percent of original size [2019-11-20 05:09:43,548 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:43,548 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:100, output treesize:96 [2019-11-20 05:09:44,081 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-20 05:09:44,081 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:44,082 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 78 treesize of output 432 [2019-11-20 05:09:44,083 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:44,205 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-11-20 05:09:44,206 INFO L567 ElimStorePlain]: treesize reduction 180, result has 38.4 percent of original size [2019-11-20 05:09:44,206 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:44,206 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:116, output treesize:112 [2019-11-20 05:09:45,361 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-11-20 05:09:45,362 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:45,362 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 562 [2019-11-20 05:09:45,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:45,517 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2019-11-20 05:09:45,518 INFO L567 ElimStorePlain]: treesize reduction 216, result has 37.2 percent of original size [2019-11-20 05:09:45,518 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:45,518 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:132, output treesize:128 [2019-11-20 05:09:57,032 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-20 05:09:57,032 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:09:57,033 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 100 treesize of output 708 [2019-11-20 05:09:57,035 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:09:57,243 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2019-11-20 05:09:57,243 INFO L567 ElimStorePlain]: treesize reduction 252, result has 36.4 percent of original size [2019-11-20 05:09:57,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-11-20 05:09:57,244 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:148, output treesize:144 [2019-11-20 05:10:29,995 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-11-20 05:12:02,508 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-20 05:12:02,510 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: SMTLIBException [2019-11-20 05:12:02,710 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:12:02,711 FATAL L? ?]: 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:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:576) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 42 more [2019-11-20 05:12:02,715 INFO L168 Benchmark]: Toolchain (without parser) took 487260.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -117.2 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:02,715 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:02,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:02,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:02,716 INFO L168 Benchmark]: Boogie Preprocessor took 41.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:02,716 INFO L168 Benchmark]: RCFGBuilder took 311.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:02,717 INFO L168 Benchmark]: TraceAbstraction took 486571.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:02,718 INFO L335 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 311.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 486571.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.9 MB). Peak memory consumption was 109.7 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 0.1.24-678e011 [2019-11-20 05:12:04,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:12:04,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:12:04,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:12:04,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:12:04,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:12:04,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:12:04,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:12:04,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:12:04,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:12:04,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:12:04,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:12:04,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:12:04,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:12:04,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:12:04,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:12:04,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:12:04,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:12:04,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:12:04,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:12:04,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:12:04,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:12:04,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:12:04,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:12:04,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:12:04,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:12:04,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:12:04,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:12:04,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:12:04,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:12:04,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:12:04,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:12:04,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:12:04,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:12:04,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:12:04,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:12:04,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:12:04,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:12:04,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:12:04,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:12:04,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:12:04,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 05:12:04,684 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:12:04,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:12:04,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:12:04,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:12:04,686 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:12:04,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:12:04,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:12:04,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:12:04,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:12:04,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:12:04,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:12:04,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:12:04,689 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 05:12:04,689 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 05:12:04,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:12:04,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:12:04,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:12:04,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:12:04,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:12:04,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:12:04,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:12:04,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:12:04,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:12:04,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:12:04,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:12:04,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:12:04,693 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 05:12:04,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 05:12:04,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:12:04,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 05:12:04,694 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 -> 26c6751f6db6a86a1f7352dea53cb896a404f528 [2019-11-20 05:12:05,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:12:05,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:12:05,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:12:05,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:12:05,025 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:12:05,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/../../sv-benchmarks/c/array-fpi/conda.c [2019-11-20 05:12:05,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/b5c750e3b/cca9e09dcfec4544825171cea81fa9d9/FLAG24cf0c9fa [2019-11-20 05:12:05,499 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:12:05,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/sv-benchmarks/c/array-fpi/conda.c [2019-11-20 05:12:05,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/b5c750e3b/cca9e09dcfec4544825171cea81fa9d9/FLAG24cf0c9fa [2019-11-20 05:12:05,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/data/b5c750e3b/cca9e09dcfec4544825171cea81fa9d9 [2019-11-20 05:12:05,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:12:05,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:12:05,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:12:05,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:12:05,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:12:05,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:05" (1/1) ... [2019-11-20 05:12:05,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1dcf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:05, skipping insertion in model container [2019-11-20 05:12:05,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:05" (1/1) ... [2019-11-20 05:12:05,878 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:12:05,898 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:12:06,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:12:06,125 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:12:06,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:12:06,179 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:12:06,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06 WrapperNode [2019-11-20 05:12:06,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:12:06,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:12:06,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:12:06,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:12:06,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:12:06,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:12:06,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:12:06,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:12:06,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... [2019-11-20 05:12:06,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:12:06,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:12:06,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:12:06,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:12:06,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/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 [2019-11-20 05:12:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:12:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-20 05:12:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 05:12:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 05:12:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:12:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:12:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-11-20 05:12:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:12:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 05:12:07,049 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:12:07,049 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 05:12:07,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:07 BoogieIcfgContainer [2019-11-20 05:12:07,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:12:07,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:12:07,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:12:07,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:12:07,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:12:05" (1/3) ... [2019-11-20 05:12:07,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d14921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:12:07, skipping insertion in model container [2019-11-20 05:12:07,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:06" (2/3) ... [2019-11-20 05:12:07,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d14921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:12:07, skipping insertion in model container [2019-11-20 05:12:07,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:07" (3/3) ... [2019-11-20 05:12:07,059 INFO L109 eAbstractionObserver]: Analyzing ICFG conda.c [2019-11-20 05:12:07,070 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:12:07,077 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:12:07,089 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:12:07,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:12:07,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:12:07,117 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:12:07,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:12:07,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:12:07,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:12:07,119 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:12:07,119 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:12:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 05:12:07,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:12:07,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:07,141 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:07,142 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:07,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-20 05:12:07,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:07,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1152471088] [2019-11-20 05:12:07,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:07,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 05:12:07,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:07,303 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:07,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1152471088] [2019-11-20 05:12:07,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:12:07,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 05:12:07,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445192707] [2019-11-20 05:12:07,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:12:07,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:07,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:12:07,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:12:07,335 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 05:12:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:07,354 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-20 05:12:07,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:12:07,356 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 05:12:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:07,366 INFO L225 Difference]: With dead ends: 35 [2019-11-20 05:12:07,366 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 05:12:07,369 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:12:07,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 05:12:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 05:12:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 05:12:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 05:12:07,405 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-20 05:12:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:07,406 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 05:12:07,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:12:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-20 05:12:07,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:12:07,407 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:07,407 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:07,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:07,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-20 05:12:07,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:07,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [684775328] [2019-11-20 05:12:07,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:07,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 05:12:07,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:07,756 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:07,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [684775328] [2019-11-20 05:12:07,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:12:07,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-20 05:12:07,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734752893] [2019-11-20 05:12:07,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:12:07,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:07,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:12:07,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:12:07,774 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-11-20 05:12:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:07,858 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-20 05:12:07,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:12:07,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 05:12:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:07,866 INFO L225 Difference]: With dead ends: 29 [2019-11-20 05:12:07,866 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 05:12:07,866 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:12:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 05:12:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 05:12:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 05:12:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 05:12:07,872 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-20 05:12:07,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:07,872 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 05:12:07,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:12:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 05:12:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 05:12:07,873 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:07,873 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:08,081 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:08,081 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:08,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:08,082 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-20 05:12:08,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:08,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1050162577] [2019-11-20 05:12:08,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:08,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 05:12:08,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:08,278 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:08,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1050162577] [2019-11-20 05:12:08,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:12:08,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 05:12:08,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038230006] [2019-11-20 05:12:08,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 05:12:08,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:08,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 05:12:08,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-20 05:12:08,416 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 10 states. [2019-11-20 05:12:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:08,871 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2019-11-20 05:12:08,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 05:12:08,872 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-11-20 05:12:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:08,873 INFO L225 Difference]: With dead ends: 53 [2019-11-20 05:12:08,873 INFO L226 Difference]: Without dead ends: 43 [2019-11-20 05:12:08,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:12:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-20 05:12:08,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2019-11-20 05:12:08,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 05:12:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2019-11-20 05:12:08,893 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 13 [2019-11-20 05:12:08,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:08,893 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2019-11-20 05:12:08,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 05:12:08,894 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2019-11-20 05:12:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 05:12:08,895 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:08,895 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:09,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:09,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:09,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:09,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-20 05:12:09,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:09,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2074458496] [2019-11-20 05:12:09,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:09,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 05:12:09,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:09,352 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:12:09,353 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,387 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:09,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:09,398 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 05:12:09,402 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2019-11-20 05:12:09,402 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,429 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:09,429 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,430 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:34 [2019-11-20 05:12:09,475 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:09,477 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2019-11-20 05:12:09,478 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,531 INFO L567 ElimStorePlain]: treesize reduction 4, result has 89.5 percent of original size [2019-11-20 05:12:09,532 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,532 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:34 [2019-11-20 05:12:09,684 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:09,737 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:09,738 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 65 [2019-11-20 05:12:09,740 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,832 INFO L567 ElimStorePlain]: treesize reduction 26, result has 56.7 percent of original size [2019-11-20 05:12:09,833 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:09,833 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:34 [2019-11-20 05:12:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:12:09,946 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:10,569 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-20 05:12:11,044 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2019-11-20 05:12:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:12:11,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074458496] [2019-11-20 05:12:11,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:12:11,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2019-11-20 05:12:11,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400319309] [2019-11-20 05:12:11,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 05:12:11,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:11,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 05:12:11,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-11-20 05:12:11,077 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 6 states. [2019-11-20 05:12:11,829 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 05:12:13,645 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-11-20 05:12:16,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:16,193 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2019-11-20 05:12:16,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 05:12:16,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-20 05:12:16,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:16,196 INFO L225 Difference]: With dead ends: 53 [2019-11-20 05:12:16,196 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 05:12:16,196 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2019-11-20 05:12:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 05:12:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2019-11-20 05:12:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 05:12:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-11-20 05:12:16,207 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 18 [2019-11-20 05:12:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:16,207 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-11-20 05:12:16,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 05:12:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2019-11-20 05:12:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 05:12:16,208 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:16,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:16,409 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:16,409 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:16,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:16,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1384874314, now seen corresponding path program 1 times [2019-11-20 05:12:16,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:16,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2008051752] [2019-11-20 05:12:16,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:16,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 05:12:16,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:16,524 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-20 05:12:16,524 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,530 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:16,531 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,531 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-11-20 05:12:16,562 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-20 05:12:16,563 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,569 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:16,569 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,569 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2019-11-20 05:12:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:12:16,585 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:16,651 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2019-11-20 05:12:16,655 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2019-11-20 05:12:16,656 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,665 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:16,665 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,668 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:16,669 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:16,669 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2019-11-20 05:12:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:12:16,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2008051752] [2019-11-20 05:12:16,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:12:16,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-11-20 05:12:16,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033492124] [2019-11-20 05:12:16,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 05:12:16,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 05:12:16,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:12:16,694 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 9 states. [2019-11-20 05:12:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:16,864 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-11-20 05:12:16,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 05:12:16,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-20 05:12:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:16,866 INFO L225 Difference]: With dead ends: 49 [2019-11-20 05:12:16,866 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 05:12:16,867 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-20 05:12:16,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 05:12:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-20 05:12:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 05:12:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-11-20 05:12:16,872 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 18 [2019-11-20 05:12:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:16,872 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-11-20 05:12:16,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 05:12:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-11-20 05:12:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:12:16,873 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:16,874 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:17,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:17,075 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:17,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:17,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2122286649, now seen corresponding path program 1 times [2019-11-20 05:12:17,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:17,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [405825106] [2019-11-20 05:12:17,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:12:17,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:12:17,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:17,336 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 05:12:17,337 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-20 05:12:17,568 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [405825106] [2019-11-20 05:12:17,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:12:17,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-20 05:12:17,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393916334] [2019-11-20 05:12:17,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 05:12:17,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:17,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 05:12:17,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-11-20 05:12:17,570 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 16 states. [2019-11-20 05:12:18,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:18,183 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2019-11-20 05:12:18,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 05:12:18,184 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2019-11-20 05:12:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:18,185 INFO L225 Difference]: With dead ends: 78 [2019-11-20 05:12:18,185 INFO L226 Difference]: Without dead ends: 62 [2019-11-20 05:12:18,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2019-11-20 05:12:18,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-20 05:12:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2019-11-20 05:12:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-20 05:12:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-11-20 05:12:18,196 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 23 [2019-11-20 05:12:18,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:18,197 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-11-20 05:12:18,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 05:12:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-11-20 05:12:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 05:12:18,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:18,199 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:18,401 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:18,404 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:18,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:18,405 INFO L82 PathProgramCache]: Analyzing trace with hash 645229449, now seen corresponding path program 2 times [2019-11-20 05:12:18,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:18,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [405942357] [2019-11-20 05:12:18,405 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:18,549 ERROR L271 FreeRefinementEngine]: Caught known exception: Array theory solver does not yet support write-chains connecting two different constant arrays [2019-11-20 05:12:18,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703981485] [2019-11-20 05:12:18,550 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:12:18,634 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:12:18,635 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:12:18,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 05:12:18,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:18,790 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-20 05:12:18,790 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,802 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:18,803 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,803 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-11-20 05:12:18,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:18,873 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:18,873 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2019-11-20 05:12:18,874 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,890 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:18,891 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,891 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:18 [2019-11-20 05:12:18,932 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-20 05:12:18,933 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,937 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:18,937 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:18,937 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2019-11-20 05:12:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:12:18,957 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:19,137 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2019-11-20 05:12:19,145 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2019-11-20 05:12:19,145 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:19,153 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:19,153 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:19,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:19,156 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:19,157 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:9 [2019-11-20 05:12:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:12:19,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [405942357] [2019-11-20 05:12:19,213 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 05:12:19,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703981485] [2019-11-20 05:12:19,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:12:19,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-11-20 05:12:19,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559155359] [2019-11-20 05:12:19,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 05:12:19,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:12:19,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 05:12:19,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:12:19,215 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 13 states. [2019-11-20 05:12:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:12:19,597 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2019-11-20 05:12:19,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 05:12:19,598 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2019-11-20 05:12:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:12:19,599 INFO L225 Difference]: With dead ends: 63 [2019-11-20 05:12:19,599 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 05:12:19,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-11-20 05:12:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 05:12:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-11-20 05:12:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 05:12:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-11-20 05:12:19,614 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 25 [2019-11-20 05:12:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:12:19,615 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-11-20 05:12:19,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 05:12:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-11-20 05:12:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 05:12:19,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:12:19,618 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:12:19,824 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:12:19,824 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:12:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:12:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1363538264, now seen corresponding path program 3 times [2019-11-20 05:12:19,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:12:19,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1692870517] [2019-11-20 05:12:19,825 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beab1d1d-bf0f-4147-b05b-9a245ca74ed7/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:19,977 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-20 05:12:19,977 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:12:19,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 05:12:19,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:12:19,989 INFO L377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 05:12:19,990 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:20,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:20,012 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:20,012 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-11-20 05:12:20,096 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 20 [2019-11-20 05:12:20,097 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:20,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:20,143 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:20,143 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:33 [2019-11-20 05:12:20,585 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:20,600 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:20,600 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 89 [2019-11-20 05:12:20,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:20,735 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2019-11-20 05:12:20,735 INFO L567 ElimStorePlain]: treesize reduction 67, result has 52.5 percent of original size [2019-11-20 05:12:20,736 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:12:20,736 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:115, output treesize:74 [2019-11-20 05:12:20,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:20,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,009 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:21,009 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 125 [2019-11-20 05:12:21,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:12:21,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,034 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,066 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 05:12:21,079 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:21,080 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 46 [2019-11-20 05:12:21,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:12:21,089 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 05:12:21,097 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:21,097 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:12:21,177 INFO L567 ElimStorePlain]: treesize reduction 4, result has 89.2 percent of original size [2019-11-20 05:12:21,177 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:12:21,177 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:123, output treesize:29 [2019-11-20 05:12:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-20 05:12:21,331 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:12:30,333 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-20 05:12:33,296 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-20 05:12:33,616 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-20 05:12:33,617 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:12:33,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:12:33,819 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |#memory_int| input size 379 context size 379 output size 379 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:351) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-11-20 05:12:33,824 INFO L168 Benchmark]: Toolchain (without parser) took 27967.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 961.8 MB in the beginning and 929.5 MB in the end (delta: 32.3 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,824 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:12:33,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.94 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,825 INFO L168 Benchmark]: Boogie Preprocessor took 64.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,826 INFO L168 Benchmark]: RCFGBuilder took 685.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,827 INFO L168 Benchmark]: TraceAbstraction took 26769.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 203.7 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:12:33,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.94 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 685.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26769.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 203.7 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |#memory_int| input size 379 context size 379 output size 379 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |#memory_int| input size 379 context size 379 output size 379: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:351) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...