./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s1lif.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_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s1lif.c -s /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s1lif.c -s /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:13,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:26:13,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:26:13,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:26:13,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:26:13,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:26:13,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:26:13,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:26:13,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:26:13,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:26:13,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:26:13,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:26:13,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:26:13,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:26:13,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:26:13,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:26:13,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:26:13,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:26:13,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:26:13,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:26:13,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:26:13,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:26:13,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:26:13,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:26:13,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:26:13,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:26:13,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:26:13,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:26:13,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:26:13,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:26:13,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:26:13,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:26:13,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:26:13,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:26:13,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:26:13,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:26:13,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:26:13,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:26:13,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:26:13,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:26:13,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:26:13,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:26:13,737 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:26:13,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:26:13,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:26:13,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:26:13,749 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:26:13,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:26:13,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:26:13,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:26:13,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:26:13,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:26:13,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:26:13,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:26:13,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:26:13,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:26:13,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:26:13,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:26:13,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:26:13,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:26:13,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:26:13,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:26:13,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:26:13,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:26:13,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:26:13,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:26:13,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:26:13,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:26:13,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:26:13,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:26:13,755 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_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:13,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:26:13,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:26:13,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:26:13,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:26:13,956 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:26:13,957 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s1lif.c [2019-11-20 07:26:14,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/9b11a3f6d/49374c17cf4e4d908a51608d53b058cc/FLAGcb4f7b8f3 [2019-11-20 07:26:14,433 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:26:14,434 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/sv-benchmarks/c/array-fpi/s1lif.c [2019-11-20 07:26:14,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/9b11a3f6d/49374c17cf4e4d908a51608d53b058cc/FLAGcb4f7b8f3 [2019-11-20 07:26:14,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/9b11a3f6d/49374c17cf4e4d908a51608d53b058cc [2019-11-20 07:26:14,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:26:14,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:26:14,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:26:14,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:26:14,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:26:14,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:26:14" (1/1) ... [2019-11-20 07:26:14,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe72269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:14, skipping insertion in model container [2019-11-20 07:26:14,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:26:14" (1/1) ... [2019-11-20 07:26:14,865 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:26:14,886 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:26:15,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:26:15,170 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:26:15,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:26:15,206 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:26:15,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15 WrapperNode [2019-11-20 07:26:15,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:26:15,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:26:15,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:26:15,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:26:15,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:26:15,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:26:15,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:26:15,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:26:15,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... [2019-11-20 07:26:15,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:26:15,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:26:15,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:26:15,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:26:15,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:26:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 07:26:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 07:26:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:26:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:26:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 07:26:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:26:15,584 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:26:15,585 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 07:26:15,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:26:15 BoogieIcfgContainer [2019-11-20 07:26:15,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:26:15,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:26:15,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:26:15,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:26:15,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:26:14" (1/3) ... [2019-11-20 07:26:15,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ef2036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:26:15, skipping insertion in model container [2019-11-20 07:26:15,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:26:15" (2/3) ... [2019-11-20 07:26:15,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ef2036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:26:15, skipping insertion in model container [2019-11-20 07:26:15,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:26:15" (3/3) ... [2019-11-20 07:26:15,594 INFO L109 eAbstractionObserver]: Analyzing ICFG s1lif.c [2019-11-20 07:26:15,603 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:26:15,609 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:26:15,620 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:26:15,643 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:26:15,643 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:26:15,643 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:26:15,643 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:26:15,644 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:26:15,644 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:26:15,644 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:26:15,644 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:26:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 07:26:15,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:26:15,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:15,696 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:15,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:15,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-20 07:26:15,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:15,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827155521] [2019-11-20 07:26:15,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:15,898 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 07:26:15,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827155521] [2019-11-20 07:26:15,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:15,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:26:15,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543538681] [2019-11-20 07:26:15,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:26:15,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:15,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:26:15,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:26:15,925 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 07:26:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:15,943 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-20 07:26:15,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:26:15,945 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 07:26:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:15,955 INFO L225 Difference]: With dead ends: 35 [2019-11-20 07:26:15,955 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 07:26:15,959 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 07:26:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 07:26:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 07:26:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:26:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 07:26:15,990 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-20 07:26:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:15,991 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 07:26:15,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:26:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-20 07:26:15,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:26:15,992 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:15,992 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:15,992 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:15,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-20 07:26:15,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:15,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691297312] [2019-11-20 07:26:15,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:16,083 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 07:26:16,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691297312] [2019-11-20 07:26:16,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:16,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:26:16,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419207772] [2019-11-20 07:26:16,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:26:16,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:16,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:26:16,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:26:16,086 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-11-20 07:26:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:16,159 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-20 07:26:16,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:26:16,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-20 07:26:16,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:16,161 INFO L225 Difference]: With dead ends: 29 [2019-11-20 07:26:16,161 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 07:26:16,162 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 07:26:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 07:26:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 07:26:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 07:26:16,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 07:26:16,166 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-20 07:26:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:16,167 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 07:26:16,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:26:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 07:26:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 07:26:16,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:16,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:16,168 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:16,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:16,168 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-20 07:26:16,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:16,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892894036] [2019-11-20 07:26:16,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:16,249 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 07:26:16,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892894036] [2019-11-20 07:26:16,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:16,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:26:16,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567891581] [2019-11-20 07:26:16,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:26:16,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:16,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:26:16,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:26:16,251 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-20 07:26:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:16,314 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-20 07:26:16,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:26:16,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 07:26:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:16,316 INFO L225 Difference]: With dead ends: 30 [2019-11-20 07:26:16,316 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 07:26:16,316 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 07:26:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 07:26:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-11-20 07:26:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 07:26:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-20 07:26:16,321 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-20 07:26:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:16,321 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 07:26:16,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:26:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-20 07:26:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 07:26:16,322 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:16,322 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 07:26:16,322 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-20 07:26:16,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:16,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624054922] [2019-11-20 07:26:16,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:17,099 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 07:26:17,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624054922] [2019-11-20 07:26:17,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906751009] [2019-11-20 07:26:17,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:17,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-20 07:26:17,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:17,248 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 07:26:17,249 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,263 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:17,278 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 07:26:17,278 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,291 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:17,292 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 07:26:17,292 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-20 07:26:17,340 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 07:26:17,341 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,362 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:17,362 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,362 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 07:26:17,737 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:17,738 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 2 case distinctions, treesize of input 43 treesize of output 79 [2019-11-20 07:26:17,740 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,785 INFO L567 ElimStorePlain]: treesize reduction 59, result has 35.2 percent of original size [2019-11-20 07:26:17,786 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 07:26:17,787 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:27 [2019-11-20 07:26:17,924 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 07:26:17,925 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:17,944 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:17,945 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 07:26:17,945 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:29 [2019-11-20 07:26:18,002 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:18,060 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 07:26:18,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:18,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-11-20 07:26:18,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395101118] [2019-11-20 07:26:18,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 07:26:18,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:18,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 07:26:18,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-11-20 07:26:18,065 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 22 states. [2019-11-20 07:26:19,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:19,305 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2019-11-20 07:26:19,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 07:26:19,313 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 18 [2019-11-20 07:26:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:19,315 INFO L225 Difference]: With dead ends: 50 [2019-11-20 07:26:19,315 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 07:26:19,317 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 07:26:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 07:26:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2019-11-20 07:26:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 07:26:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-20 07:26:19,323 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-20 07:26:19,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:19,323 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-20 07:26:19,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 07:26:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-20 07:26:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 07:26:19,324 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:19,324 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 07:26:19,533 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:19,533 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:19,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:19,533 INFO L82 PathProgramCache]: Analyzing trace with hash -780577906, now seen corresponding path program 2 times [2019-11-20 07:26:19,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:19,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080225259] [2019-11-20 07:26:19,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:19,597 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 07:26:19,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080225259] [2019-11-20 07:26:19,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160703791] [2019-11-20 07:26:19,597 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:19,652 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:26:19,652 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:19,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:26:19,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:19,731 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 07:26:19,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:19,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-20 07:26:19,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298046412] [2019-11-20 07:26:19,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 07:26:19,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:19,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 07:26:19,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-20 07:26:19,733 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 10 states. [2019-11-20 07:26:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:19,898 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2019-11-20 07:26:19,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 07:26:19,900 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-20 07:26:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:19,901 INFO L225 Difference]: With dead ends: 62 [2019-11-20 07:26:19,901 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 07:26:19,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:26:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 07:26:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 07:26:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 07:26:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-20 07:26:19,907 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 20 [2019-11-20 07:26:19,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:19,907 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-20 07:26:19,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 07:26:19,907 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-20 07:26:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 07:26:19,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:19,908 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 07:26:20,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:20,120 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:20,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1936976406, now seen corresponding path program 3 times [2019-11-20 07:26:20,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:20,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735299295] [2019-11-20 07:26:20,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:20,185 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 07:26:20,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735299295] [2019-11-20 07:26:20,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981175414] [2019-11-20 07:26:20,186 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:20,224 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-20 07:26:20,224 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:20,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:26:20,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:20,265 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 07:26:20,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:20,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-20 07:26:20,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623354793] [2019-11-20 07:26:20,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 07:26:20,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:20,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 07:26:20,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-20 07:26:20,267 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 10 states. [2019-11-20 07:26:20,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:20,375 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2019-11-20 07:26:20,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:26:20,375 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-20 07:26:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:20,376 INFO L225 Difference]: With dead ends: 37 [2019-11-20 07:26:20,376 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 07:26:20,376 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 07:26:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 07:26:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-11-20 07:26:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 07:26:20,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-11-20 07:26:20,382 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2019-11-20 07:26:20,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:20,382 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-11-20 07:26:20,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 07:26:20,382 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-11-20 07:26:20,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 07:26:20,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:20,383 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 07:26:20,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:20,584 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:20,584 INFO L82 PathProgramCache]: Analyzing trace with hash 387064011, now seen corresponding path program 4 times [2019-11-20 07:26:20,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:20,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329949450] [2019-11-20 07:26:20,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:21,359 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-11-20 07:26:21,942 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 07:26:21,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329949450] [2019-11-20 07:26:21,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308774330] [2019-11-20 07:26:21,943 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:21,997 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:26:21,997 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:21,999 WARN L253 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-20 07:26:22,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:22,009 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 07:26:22,010 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,020 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:22,024 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 07:26:22,024 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,033 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:22,033 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 07:26:22,033 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 07:26:22,071 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 07:26:22,072 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,081 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:22,081 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,081 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 07:26:22,211 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:22,211 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 07:26:22,212 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,251 INFO L567 ElimStorePlain]: treesize reduction 36, result has 57.1 percent of original size [2019-11-20 07:26:22,251 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 07:26:22,252 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2019-11-20 07:26:22,633 INFO L343 Elim1Store]: treesize reduction 16, result has 89.1 percent of original size [2019-11-20 07:26:22,633 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 07:26:22,634 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:22,711 INFO L567 ElimStorePlain]: treesize reduction 116, result has 43.1 percent of original size [2019-11-20 07:26:22,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,714 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,715 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 07:26:22,715 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:88 [2019-11-20 07:26:22,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:22,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:22,992 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:26:22,994 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 07:26:22,994 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:23,012 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:23,013 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 07:26:23,013 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:44 [2019-11-20 07:26:23,136 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:26:23,138 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:23,139 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 07:26:23,140 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:23,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:23,166 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 07:26:23,166 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:59 [2019-11-20 07:26:23,277 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:26:23,279 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 07:26:23,280 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:23,292 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:23,293 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 07:26:23,293 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:39 [2019-11-20 07:26:23,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:23,383 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 07:26:23,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:23,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2019-11-20 07:26:23,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407412806] [2019-11-20 07:26:23,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-20 07:26:23,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:23,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-20 07:26:23,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 07:26:23,386 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 39 states. [2019-11-20 07:26:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:25,189 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2019-11-20 07:26:25,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-20 07:26:25,189 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 25 [2019-11-20 07:26:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:25,190 INFO L225 Difference]: With dead ends: 71 [2019-11-20 07:26:25,190 INFO L226 Difference]: Without dead ends: 54 [2019-11-20 07:26:25,192 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=466, Invalid=3074, Unknown=0, NotChecked=0, Total=3540 [2019-11-20 07:26:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-20 07:26:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 40. [2019-11-20 07:26:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 07:26:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-11-20 07:26:25,199 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 25 [2019-11-20 07:26:25,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:25,199 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-11-20 07:26:25,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-20 07:26:25,199 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-11-20 07:26:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 07:26:25,200 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:25,200 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 07:26:25,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:25,405 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:25,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:25,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1640406643, now seen corresponding path program 5 times [2019-11-20 07:26:25,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:25,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470896845] [2019-11-20 07:26:25,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:25,528 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 07:26:25,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470896845] [2019-11-20 07:26:25,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760307491] [2019-11-20 07:26:25,528 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:25,595 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-11-20 07:26:25,595 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:25,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:26:25,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:25,666 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 07:26:25,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:25,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-11-20 07:26:25,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948968558] [2019-11-20 07:26:25,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 07:26:25,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:25,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 07:26:25,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-11-20 07:26:25,667 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 13 states. [2019-11-20 07:26:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:25,852 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2019-11-20 07:26:25,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 07:26:25,853 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-20 07:26:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:25,854 INFO L225 Difference]: With dead ends: 81 [2019-11-20 07:26:25,854 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 07:26:25,854 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 07:26:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 07:26:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2019-11-20 07:26:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-20 07:26:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2019-11-20 07:26:25,861 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 27 [2019-11-20 07:26:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:25,862 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-11-20 07:26:25,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 07:26:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-11-20 07:26:25,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 07:26:25,863 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:25,863 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 07:26:26,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:26,065 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:26,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:26,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1494406189, now seen corresponding path program 6 times [2019-11-20 07:26:26,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:26,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997958557] [2019-11-20 07:26:26,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:26,149 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 07:26:26,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997958557] [2019-11-20 07:26:26,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083269442] [2019-11-20 07:26:26,149 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:26,200 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2019-11-20 07:26:26,200 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:26,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:26:26,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:26,240 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 07:26:26,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:26,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-11-20 07:26:26,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950349892] [2019-11-20 07:26:26,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 07:26:26,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:26,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 07:26:26,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-11-20 07:26:26,242 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 13 states. [2019-11-20 07:26:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:26,438 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-11-20 07:26:26,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 07:26:26,438 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-20 07:26:26,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:26,439 INFO L225 Difference]: With dead ends: 46 [2019-11-20 07:26:26,439 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 07:26:26,440 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 07:26:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 07:26:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2019-11-20 07:26:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 07:26:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-11-20 07:26:26,448 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 27 [2019-11-20 07:26:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:26,448 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-11-20 07:26:26,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 07:26:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-20 07:26:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 07:26:26,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:26,452 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 07:26:26,656 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:26,657 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:26,657 INFO L82 PathProgramCache]: Analyzing trace with hash 669104364, now seen corresponding path program 7 times [2019-11-20 07:26:26,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:26,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877712494] [2019-11-20 07:26:26,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:27,511 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-11-20 07:26:27,724 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2019-11-20 07:26:28,300 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-11-20 07:26:29,151 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 07:26:29,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877712494] [2019-11-20 07:26:29,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533854689] [2019-11-20 07:26:29,151 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:29,206 WARN L253 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-20 07:26:29,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:29,213 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 07:26:29,213 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,220 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:29,223 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 07:26:29,224 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,230 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:29,230 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 07:26:29,230 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 07:26:29,265 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 07:26:29,265 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,273 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:29,273 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,274 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 07:26:29,354 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:29,355 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 07:26:29,355 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,381 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 07:26:29,381 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,381 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 07:26:29,507 INFO L343 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2019-11-20 07:26:29,508 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 07:26:29,508 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,544 INFO L567 ElimStorePlain]: treesize reduction 54, result has 47.1 percent of original size [2019-11-20 07:26:29,545 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,545 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 07:26:29,901 INFO L343 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2019-11-20 07:26:29,901 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 07:26:29,903 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,942 INFO L567 ElimStorePlain]: treesize reduction 95, result has 32.6 percent of original size [2019-11-20 07:26:29,942 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:29,942 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:46 [2019-11-20 07:26:30,190 INFO L343 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2019-11-20 07:26:30,191 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 07:26:30,192 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,288 INFO L567 ElimStorePlain]: treesize reduction 187, result has 20.4 percent of original size [2019-11-20 07:26:30,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,289 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:48 [2019-11-20 07:26:30,487 INFO L343 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2019-11-20 07:26:30,487 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 07:26:30,488 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,499 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:30,499 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,499 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:43 [2019-11-20 07:26:30,640 INFO L343 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2019-11-20 07:26:30,641 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 07:26:30,641 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,670 INFO L567 ElimStorePlain]: treesize reduction 72, result has 44.6 percent of original size [2019-11-20 07:26:30,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,671 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:58 [2019-11-20 07:26:30,823 INFO L343 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2019-11-20 07:26:30,823 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 07:26:30,824 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,855 INFO L567 ElimStorePlain]: treesize reduction 78, result has 45.5 percent of original size [2019-11-20 07:26:30,855 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,855 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:65 [2019-11-20 07:26:30,987 INFO L343 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2019-11-20 07:26:30,987 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 07:26:30,988 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:30,998 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:30,999 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 07:26:30,999 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:82, output treesize:43 [2019-11-20 07:26:31,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:31,114 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 07:26:31,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:31,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 26] total 52 [2019-11-20 07:26:31,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97898307] [2019-11-20 07:26:31,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-11-20 07:26:31,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:31,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-11-20 07:26:31,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2421, Unknown=0, NotChecked=0, Total=2652 [2019-11-20 07:26:31,117 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 52 states. [2019-11-20 07:26:32,406 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2019-11-20 07:26:32,858 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-11-20 07:26:33,155 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2019-11-20 07:26:36,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:36,943 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2019-11-20 07:26:36,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-11-20 07:26:36,943 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 32 [2019-11-20 07:26:36,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:36,944 INFO L225 Difference]: With dead ends: 99 [2019-11-20 07:26:36,944 INFO L226 Difference]: Without dead ends: 75 [2019-11-20 07:26:36,947 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3344 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1146, Invalid=9360, Unknown=0, NotChecked=0, Total=10506 [2019-11-20 07:26:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-20 07:26:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 57. [2019-11-20 07:26:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-20 07:26:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2019-11-20 07:26:36,959 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 32 [2019-11-20 07:26:36,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:36,960 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2019-11-20 07:26:36,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-11-20 07:26:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2019-11-20 07:26:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 07:26:36,961 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:36,961 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 07:26:37,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:37,164 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:37,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1182567058, now seen corresponding path program 8 times [2019-11-20 07:26:37,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:37,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035957031] [2019-11-20 07:26:37,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:37,294 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 07:26:37,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035957031] [2019-11-20 07:26:37,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821533995] [2019-11-20 07:26:37,295 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:37,330 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:26:37,330 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:37,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:26:37,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:37,385 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 07:26:37,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:37,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2019-11-20 07:26:37,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568922503] [2019-11-20 07:26:37,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 07:26:37,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:37,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 07:26:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-11-20 07:26:37,387 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 16 states. [2019-11-20 07:26:37,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:37,570 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2019-11-20 07:26:37,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 07:26:37,570 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2019-11-20 07:26:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:37,571 INFO L225 Difference]: With dead ends: 94 [2019-11-20 07:26:37,571 INFO L226 Difference]: Without dead ends: 68 [2019-11-20 07:26:37,571 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 07:26:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-20 07:26:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2019-11-20 07:26:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 07:26:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2019-11-20 07:26:37,580 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 34 [2019-11-20 07:26:37,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:37,580 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2019-11-20 07:26:37,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 07:26:37,580 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2019-11-20 07:26:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 07:26:37,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:37,581 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 07:26:37,781 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:37,782 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:37,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1607440760, now seen corresponding path program 1 times [2019-11-20 07:26:37,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:37,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212291331] [2019-11-20 07:26:37,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:37,879 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 07:26:37,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212291331] [2019-11-20 07:26:37,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553245871] [2019-11-20 07:26:37,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:37,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:26:37,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:38,013 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 07:26:38,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:38,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2019-11-20 07:26:38,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288418701] [2019-11-20 07:26:38,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 07:26:38,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:38,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 07:26:38,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-20 07:26:38,015 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 16 states. [2019-11-20 07:26:38,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:38,249 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2019-11-20 07:26:38,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 07:26:38,249 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 34 [2019-11-20 07:26:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:38,250 INFO L225 Difference]: With dead ends: 63 [2019-11-20 07:26:38,250 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 07:26:38,251 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2019-11-20 07:26:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 07:26:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2019-11-20 07:26:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 07:26:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-11-20 07:26:38,257 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 34 [2019-11-20 07:26:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:38,257 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-11-20 07:26:38,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 07:26:38,257 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-11-20 07:26:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:26:38,258 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:38,258 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 07:26:38,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:38,462 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:38,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1984465037, now seen corresponding path program 9 times [2019-11-20 07:26:38,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:38,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072870755] [2019-11-20 07:26:38,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:39,512 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-11-20 07:26:39,696 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2019-11-20 07:26:39,982 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 55 [2019-11-20 07:26:40,135 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 43 [2019-11-20 07:26:40,453 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-11-20 07:26:41,307 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2019-11-20 07:26:41,625 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 07:26:41,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072870755] [2019-11-20 07:26:41,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170342592] [2019-11-20 07:26:41,625 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:41,687 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-20 07:26:41,687 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:41,689 WARN L253 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 65 conjunts are in the unsatisfiable core [2019-11-20 07:26:41,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:41,702 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 07:26:41,702 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:41,708 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:41,709 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:41,709 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-11-20 07:26:41,749 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:41,751 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 07:26:41,751 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:41,759 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:41,760 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 07:26:41,760 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:30 [2019-11-20 07:26:41,822 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:41,832 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:41,833 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 07:26:41,833 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:41,857 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 07:26:41,857 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 07:26:41,858 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 07:26:41,904 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:41,915 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:41,915 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 07:26:41,915 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:41,941 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 07:26:41,941 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 07:26:41,941 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 07:26:41,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:41,993 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:41,993 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 07:26:41,993 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,018 INFO L567 ElimStorePlain]: treesize reduction 36, result has 53.2 percent of original size [2019-11-20 07:26:42,018 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 07:26:42,019 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2019-11-20 07:26:42,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,167 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:42,167 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 07:26:42,168 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,214 INFO L567 ElimStorePlain]: treesize reduction 58, result has 49.1 percent of original size [2019-11-20 07:26:42,215 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 07:26:42,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:33 [2019-11-20 07:26:42,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,363 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 07:26:42,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,375 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:42,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,375 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:45 [2019-11-20 07:26:42,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,614 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 07:26:42,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,627 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:42,627 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,628 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:49 [2019-11-20 07:26:42,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,815 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,815 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,816 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,817 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,819 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:42,820 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 07:26:42,820 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,837 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:42,837 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:42,837 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:61 [2019-11-20 07:26:43,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,138 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,139 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,140 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,141 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:26:43,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,145 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2019-11-20 07:26:43,146 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,163 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:43,163 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,163 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:67 [2019-11-20 07:26:43,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,290 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 07:26:43,291 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,308 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:43,308 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,308 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:72 [2019-11-20 07:26:43,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,384 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,426 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:43,427 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 07:26:43,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,480 INFO L567 ElimStorePlain]: treesize reduction 92, result has 44.2 percent of original size [2019-11-20 07:26:43,480 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,481 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:73 [2019-11-20 07:26:43,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:43,666 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:43,667 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 07:26:43,669 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:43,716 INFO L567 ElimStorePlain]: treesize reduction 180, result has 27.1 percent of original size [2019-11-20 07:26:43,716 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 07:26:43,717 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:88, output treesize:67 [2019-11-20 07:26:44,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:44,123 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 07:26:44,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:44,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 28] total 60 [2019-11-20 07:26:44,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956480860] [2019-11-20 07:26:44,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2019-11-20 07:26:44,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:44,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2019-11-20 07:26:44,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3148, Unknown=0, NotChecked=0, Total=3540 [2019-11-20 07:26:44,127 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 60 states. [2019-11-20 07:26:46,813 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 35 [2019-11-20 07:26:48,330 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 51 [2019-11-20 07:26:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:51,645 INFO L93 Difference]: Finished difference Result 151 states and 184 transitions. [2019-11-20 07:26:51,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-11-20 07:26:51,646 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 39 [2019-11-20 07:26:51,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:51,647 INFO L225 Difference]: With dead ends: 151 [2019-11-20 07:26:51,647 INFO L226 Difference]: Without dead ends: 133 [2019-11-20 07:26:51,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6589 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=1825, Invalid=16265, Unknown=0, NotChecked=0, Total=18090 [2019-11-20 07:26:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-20 07:26:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 74. [2019-11-20 07:26:51,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 07:26:51,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2019-11-20 07:26:51,665 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 39 [2019-11-20 07:26:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:51,665 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2019-11-20 07:26:51,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 60 states. [2019-11-20 07:26:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2019-11-20 07:26:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:26:51,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:51,667 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 07:26:51,869 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:51,870 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:51,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:51,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1289433905, now seen corresponding path program 2 times [2019-11-20 07:26:51,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:51,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459887579] [2019-11-20 07:26:51,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:52,184 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 07:26:52,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459887579] [2019-11-20 07:26:52,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506826095] [2019-11-20 07:26:52,184 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:52,221 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:26:52,221 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:52,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-20 07:26:52,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:52,294 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 07:26:52,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,297 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,298 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,298 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-11-20 07:26:52,333 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:52,334 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,335 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 07:26:52,335 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 07:26:52,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:52,363 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,363 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 07:26:52,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,370 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,371 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,371 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 07:26:52,399 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:52,400 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,400 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 07:26:52,400 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,405 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,405 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,405 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:16 [2019-11-20 07:26:52,429 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 07:26:52,430 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:52,434 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:52,434 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 07:26:52,434 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-11-20 07:26:52,457 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 07:26:52,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:52,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2019-11-20 07:26:52,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128175020] [2019-11-20 07:26:52,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 07:26:52,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:52,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 07:26:52,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2019-11-20 07:26:52,458 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 25 states. [2019-11-20 07:26:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:53,109 INFO L93 Difference]: Finished difference Result 104 states and 127 transitions. [2019-11-20 07:26:53,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 07:26:53,109 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2019-11-20 07:26:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:53,110 INFO L225 Difference]: With dead ends: 104 [2019-11-20 07:26:53,110 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 07:26:53,111 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 07:26:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 07:26:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 80. [2019-11-20 07:26:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 07:26:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2019-11-20 07:26:53,122 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 39 [2019-11-20 07:26:53,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:53,122 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2019-11-20 07:26:53,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 07:26:53,122 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2019-11-20 07:26:53,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:26:53,124 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:53,124 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 07:26:53,327 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:53,327 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:53,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:53,328 INFO L82 PathProgramCache]: Analyzing trace with hash 621558517, now seen corresponding path program 3 times [2019-11-20 07:26:53,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:53,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864539468] [2019-11-20 07:26:53,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:53,690 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 07:26:53,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864539468] [2019-11-20 07:26:53,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478417417] [2019-11-20 07:26:53,691 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:53,745 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-20 07:26:53,745 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:53,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-20 07:26:53,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:53,803 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 07:26:53,803 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:53,808 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:53,808 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:53,808 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-11-20 07:26:53,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:53,847 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 07:26:53,848 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:53,854 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:53,854 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:53,855 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2019-11-20 07:26:53,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:53,993 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:53,993 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 07:26:53,994 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,047 INFO L567 ElimStorePlain]: treesize reduction 66, result has 63.7 percent of original size [2019-11-20 07:26:54,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,051 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 07:26:54,051 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:116 [2019-11-20 07:26:54,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,266 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-11-20 07:26:54,268 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 07:26:54,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,294 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 07:26:54,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,299 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,304 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 07:26:54,305 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,325 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,325 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 07:26:54,326 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,413 INFO L567 ElimStorePlain]: treesize reduction 34, result has 83.0 percent of original size [2019-11-20 07:26:54,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,415 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 07:26:54,415 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:201, output treesize:166 [2019-11-20 07:26:54,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 07:26:54,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,649 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-11-20 07:26:54,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 07:26:54,654 INFO L392 ElimStorePlain]: Different costs {4=[v_prenex_8, v_prenex_10, v_prenex_6], 6=[|#memory_int|]} [2019-11-20 07:26:54,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,661 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,661 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 07:26:54,661 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,732 INFO L567 ElimStorePlain]: treesize reduction 6, result has 95.3 percent of original size [2019-11-20 07:26:54,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,741 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,741 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 07:26:54,741 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,806 INFO L567 ElimStorePlain]: treesize reduction 6, result has 94.4 percent of original size [2019-11-20 07:26:54,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,812 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,812 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 07:26:54,812 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,859 INFO L567 ElimStorePlain]: treesize reduction 13, result has 83.5 percent of original size [2019-11-20 07:26:54,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:54,873 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,874 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 07:26:54,874 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:54,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:54,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:54,904 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 07:26:54,904 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:150, output treesize:99 [2019-11-20 07:26:55,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:55,137 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 07:26:55,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:55,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 31 [2019-11-20 07:26:55,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293858078] [2019-11-20 07:26:55,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-20 07:26:55,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:55,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-20 07:26:55,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2019-11-20 07:26:55,141 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand 31 states. [2019-11-20 07:26:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:57,762 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2019-11-20 07:26:57,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 07:26:57,762 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2019-11-20 07:26:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:57,763 INFO L225 Difference]: With dead ends: 108 [2019-11-20 07:26:57,763 INFO L226 Difference]: Without dead ends: 88 [2019-11-20 07:26:57,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2019-11-20 07:26:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-20 07:26:57,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2019-11-20 07:26:57,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-20 07:26:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 95 transitions. [2019-11-20 07:26:57,776 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 95 transitions. Word has length 39 [2019-11-20 07:26:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:57,776 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 95 transitions. [2019-11-20 07:26:57,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-20 07:26:57,776 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 95 transitions. [2019-11-20 07:26:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:26:57,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:57,778 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 07:26:57,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:57,988 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:57,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1765610319, now seen corresponding path program 4 times [2019-11-20 07:26:57,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:57,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690378337] [2019-11-20 07:26:57,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:58,275 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 07:26:58,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690378337] [2019-11-20 07:26:58,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903705186] [2019-11-20 07:26:58,275 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:26:58,310 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:26:58,310 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:26:58,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-20 07:26:58,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:58,321 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 07:26:58,321 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,324 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:58,324 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,324 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-11-20 07:26:58,363 INFO L343 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2019-11-20 07:26:58,363 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 07:26:58,363 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:58,367 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,368 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-11-20 07:26:58,433 INFO L343 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2019-11-20 07:26:58,434 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 07:26:58,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,442 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:26:58,442 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,443 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2019-11-20 07:26:58,641 INFO L343 Elim1Store]: treesize reduction 52, result has 79.8 percent of original size [2019-11-20 07:26:58,641 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 07:26:58,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:58,716 INFO L567 ElimStorePlain]: treesize reduction 100, result has 62.3 percent of original size [2019-11-20 07:26:58,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,727 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 07:26:58,728 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:72, output treesize:165 [2019-11-20 07:26:58,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:58,783 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 07:26:58,978 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-11-20 07:26:58,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 07:26:58,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:58,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:58,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:58,993 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 07:26:58,993 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:59,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,013 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 07:26:59,013 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:59,018 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:26:59,023 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 07:26:59,023 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:59,062 INFO L343 Elim1Store]: treesize reduction 52, result has 49.5 percent of original size [2019-11-20 07:26:59,062 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 07:26:59,063 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:26:59,145 INFO L567 ElimStorePlain]: treesize reduction 39, result has 71.1 percent of original size [2019-11-20 07:26:59,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:59,147 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 07:26:59,147 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:264, output treesize:105 [2019-11-20 07:26:59,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:59,362 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 07:26:59,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:59,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 31 [2019-11-20 07:26:59,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46895650] [2019-11-20 07:26:59,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-20 07:26:59,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:59,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-20 07:26:59,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2019-11-20 07:26:59,363 INFO L87 Difference]: Start difference. First operand 80 states and 95 transitions. Second operand 31 states. [2019-11-20 07:27:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:00,999 INFO L93 Difference]: Finished difference Result 117 states and 136 transitions. [2019-11-20 07:27:00,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-20 07:27:00,999 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2019-11-20 07:27:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:01,000 INFO L225 Difference]: With dead ends: 117 [2019-11-20 07:27:01,000 INFO L226 Difference]: Without dead ends: 103 [2019-11-20 07:27:01,002 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 07:27:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-20 07:27:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2019-11-20 07:27:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-20 07:27:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2019-11-20 07:27:01,016 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 39 [2019-11-20 07:27:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:01,017 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2019-11-20 07:27:01,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-20 07:27:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2019-11-20 07:27:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:27:01,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:01,018 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 07:27:01,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:01,224 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1843916427, now seen corresponding path program 5 times [2019-11-20 07:27:01,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:01,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301230956] [2019-11-20 07:27:01,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:01,518 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 07:27:01,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301230956] [2019-11-20 07:27:01,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57512915] [2019-11-20 07:27:01,519 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:01,729 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2019-11-20 07:27:01,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:27:01,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 07:27:01,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:01,750 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 07:27:01,750 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:01,754 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:01,755 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:01,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 07:27:01,795 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:01,795 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 07:27:01,795 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:01,809 INFO L567 ElimStorePlain]: treesize reduction 24, result has 47.8 percent of original size [2019-11-20 07:27:01,810 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:01,810 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-11-20 07:27:02,076 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:02,076 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 07:27:02,077 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:02,104 INFO L567 ElimStorePlain]: treesize reduction 60, result has 38.8 percent of original size [2019-11-20 07:27:02,104 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 07:27:02,105 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2019-11-20 07:27:02,606 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:02,606 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 07:27:02,607 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:02,650 INFO L567 ElimStorePlain]: treesize reduction 96, result has 36.0 percent of original size [2019-11-20 07:27:02,651 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 07:27:02,651 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:58, output treesize:54 [2019-11-20 07:27:08,741 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:08,742 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 07:27:08,742 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:08,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:08,748 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 07:27:08,749 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:61, output treesize:3 [2019-11-20 07:27:08,770 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 07:27:08,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:08,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2019-11-20 07:27:08,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615924584] [2019-11-20 07:27:08,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-20 07:27:08,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:08,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-20 07:27:08,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=474, Unknown=4, NotChecked=0, Total=552 [2019-11-20 07:27:08,772 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand 24 states. [2019-11-20 07:27:19,761 WARN L191 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-20 07:27:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:19,956 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2019-11-20 07:27:19,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 07:27:19,957 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2019-11-20 07:27:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:19,957 INFO L225 Difference]: With dead ends: 114 [2019-11-20 07:27:19,957 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 07:27:19,958 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=199, Invalid=984, Unknown=7, NotChecked=0, Total=1190 [2019-11-20 07:27:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 07:27:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2019-11-20 07:27:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-20 07:27:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2019-11-20 07:27:19,969 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 39 [2019-11-20 07:27:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:19,969 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2019-11-20 07:27:19,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-20 07:27:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2019-11-20 07:27:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 07:27:19,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:19,970 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 07:27:20,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:20,170 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:20,171 INFO L82 PathProgramCache]: Analyzing trace with hash -52187595, now seen corresponding path program 10 times [2019-11-20 07:27:20,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:20,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227617525] [2019-11-20 07:27:20,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:20,289 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 07:27:20,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227617525] [2019-11-20 07:27:20,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102231941] [2019-11-20 07:27:20,290 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:20,326 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:27:20,326 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:27:20,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 07:27:20,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:20,415 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 07:27:20,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:20,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2019-11-20 07:27:20,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592757358] [2019-11-20 07:27:20,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 07:27:20,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:20,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 07:27:20,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2019-11-20 07:27:20,417 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 19 states. [2019-11-20 07:27:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:20,690 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2019-11-20 07:27:20,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 07:27:20,691 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 41 [2019-11-20 07:27:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:20,691 INFO L225 Difference]: With dead ends: 132 [2019-11-20 07:27:20,692 INFO L226 Difference]: Without dead ends: 76 [2019-11-20 07:27:20,692 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 07:27:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-20 07:27:20,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2019-11-20 07:27:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-20 07:27:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2019-11-20 07:27:20,701 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 41 [2019-11-20 07:27:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:20,702 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2019-11-20 07:27:20,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 07:27:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2019-11-20 07:27:20,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 07:27:20,703 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:20,703 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 07:27:20,906 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:20,906 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:20,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:20,906 INFO L82 PathProgramCache]: Analyzing trace with hash 844219272, now seen corresponding path program 6 times [2019-11-20 07:27:20,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:20,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211029049] [2019-11-20 07:27:20,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:21,030 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 07:27:21,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211029049] [2019-11-20 07:27:21,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133330867] [2019-11-20 07:27:21,030 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:21,141 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2019-11-20 07:27:21,141 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:27:21,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 07:27:21,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:21,270 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 07:27:21,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:21,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2019-11-20 07:27:21,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312677054] [2019-11-20 07:27:21,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 07:27:21,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 07:27:21,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 07:27:21,272 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand 19 states. [2019-11-20 07:27:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:21,764 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2019-11-20 07:27:21,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 07:27:21,765 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 44 [2019-11-20 07:27:21,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:21,766 INFO L225 Difference]: With dead ends: 75 [2019-11-20 07:27:21,766 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 07:27:21,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2019-11-20 07:27:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 07:27:21,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 47. [2019-11-20 07:27:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-20 07:27:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2019-11-20 07:27:21,777 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 44 [2019-11-20 07:27:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:21,778 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2019-11-20 07:27:21,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 07:27:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2019-11-20 07:27:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 07:27:21,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:21,779 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 07:27:21,984 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:21,984 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:21,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1593279692, now seen corresponding path program 11 times [2019-11-20 07:27:21,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:21,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871773456] [2019-11-20 07:27:21,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:23,040 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 35 [2019-11-20 07:27:23,257 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 47 [2019-11-20 07:27:23,500 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2019-11-20 07:27:23,634 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 40 [2019-11-20 07:27:23,794 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 51 [2019-11-20 07:27:23,977 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 57 [2019-11-20 07:27:24,361 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-11-20 07:27:24,555 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2019-11-20 07:27:24,854 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-11-20 07:27:25,028 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-11-20 07:27:26,392 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 07:27:26,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871773456] [2019-11-20 07:27:26,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718964799] [2019-11-20 07:27:26,393 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:26,543 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-20 07:27:26,544 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:27:26,546 WARN L253 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 88 conjunts are in the unsatisfiable core [2019-11-20 07:27:26,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:26,554 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 07:27:26,554 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,564 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:26,568 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 07:27:26,568 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,577 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:26,577 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 07:27:26,577 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2019-11-20 07:27:26,623 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 07:27:26,623 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,642 INFO L567 ElimStorePlain]: treesize reduction 4, result has 88.6 percent of original size [2019-11-20 07:27:26,642 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,643 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:31 [2019-11-20 07:27:26,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,730 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:26,730 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 07:27:26,731 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,752 INFO L567 ElimStorePlain]: treesize reduction 4, result has 90.5 percent of original size [2019-11-20 07:27:26,752 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,752 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2019-11-20 07:27:26,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,858 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:26,858 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 07:27:26,859 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,884 INFO L567 ElimStorePlain]: treesize reduction 16, result has 74.6 percent of original size [2019-11-20 07:27:26,885 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:26,885 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-11-20 07:27:26,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:26,998 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:26,998 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 07:27:26,998 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,028 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.1 percent of original size [2019-11-20 07:27:27,029 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,029 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-11-20 07:27:27,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,160 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:27,160 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 07:27:27,161 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,191 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.3 percent of original size [2019-11-20 07:27:27,191 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,192 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 07:27:27,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,386 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:27,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,392 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,422 INFO L343 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2019-11-20 07:27:27,422 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 07:27:27,423 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,496 INFO L567 ElimStorePlain]: treesize reduction 57, result has 54.0 percent of original size [2019-11-20 07:27:27,497 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,497 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:67 [2019-11-20 07:27:27,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,716 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:27,716 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,732 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:27,732 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 07:27:27,733 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,768 INFO L567 ElimStorePlain]: treesize reduction 21, result has 75.6 percent of original size [2019-11-20 07:27:27,768 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:27,768 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:65 [2019-11-20 07:27:27,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,995 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:27,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:27,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,009 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:28,009 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 07:27:28,010 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,046 INFO L567 ElimStorePlain]: treesize reduction 29, result has 69.5 percent of original size [2019-11-20 07:27:28,047 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,047 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:66 [2019-11-20 07:27:28,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,265 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:28,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,280 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:28,280 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 07:27:28,281 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,319 INFO L567 ElimStorePlain]: treesize reduction 21, result has 76.4 percent of original size [2019-11-20 07:27:28,319 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,320 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:68 [2019-11-20 07:27:28,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,612 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:28,612 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 07:27:28,613 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,641 INFO L567 ElimStorePlain]: treesize reduction 12, result has 83.3 percent of original size [2019-11-20 07:27:28,641 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,642 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:60 [2019-11-20 07:27:28,798 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,799 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:28,800 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,801 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,809 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:28,855 INFO L343 Elim1Store]: treesize reduction 8, result has 89.7 percent of original size [2019-11-20 07:27:28,855 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 07:27:28,856 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,898 INFO L567 ElimStorePlain]: treesize reduction 43, result has 62.3 percent of original size [2019-11-20 07:27:28,899 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:28,899 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:71 [2019-11-20 07:27:29,066 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:29,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,070 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,075 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 07:27:29,076 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,110 INFO L567 ElimStorePlain]: treesize reduction 4, result has 95.2 percent of original size [2019-11-20 07:27:29,110 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,111 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:80 [2019-11-20 07:27:29,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,304 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,305 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,306 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,306 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,311 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:29,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,328 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:29,328 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 07:27:29,329 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,374 INFO L567 ElimStorePlain]: treesize reduction 60, result has 57.1 percent of original size [2019-11-20 07:27:29,374 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,374 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:80 [2019-11-20 07:27:29,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,588 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,597 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:29,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,602 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:29,624 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:29,624 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 07:27:29,625 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,692 INFO L567 ElimStorePlain]: treesize reduction 61, result has 56.7 percent of original size [2019-11-20 07:27:29,692 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:29,692 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:80 [2019-11-20 07:27:29,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,903 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,904 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,906 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:27:29,910 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:27:29,931 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:29,932 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 07:27:29,933 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:30,002 INFO L567 ElimStorePlain]: treesize reduction 54, result has 56.5 percent of original size [2019-11-20 07:27:30,003 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 07:27:30,003 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:93, output treesize:70 [2019-11-20 07:27:30,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:27:30,514 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 07:27:30,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:30,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 78 [2019-11-20 07:27:30,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179344921] [2019-11-20 07:27:30,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2019-11-20 07:27:30,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:30,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2019-11-20 07:27:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=5537, Unknown=0, NotChecked=0, Total=6006 [2019-11-20 07:27:30,519 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 78 states. [2019-11-20 07:27:36,266 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-11-20 07:27:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:37,761 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2019-11-20 07:27:37,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-11-20 07:27:37,761 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 46 [2019-11-20 07:27:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:37,762 INFO L225 Difference]: With dead ends: 111 [2019-11-20 07:27:37,762 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 07:27:37,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5734 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1418, Invalid=14838, Unknown=0, NotChecked=0, Total=16256 [2019-11-20 07:27:37,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 07:27:37,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 56. [2019-11-20 07:27:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-20 07:27:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-11-20 07:27:37,772 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 46 [2019-11-20 07:27:37,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:37,772 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2019-11-20 07:27:37,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 78 states. [2019-11-20 07:27:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2019-11-20 07:27:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-20 07:27:37,773 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:37,773 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 07:27:37,973 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:37,973 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:37,974 INFO L82 PathProgramCache]: Analyzing trace with hash -2108307122, now seen corresponding path program 12 times [2019-11-20 07:27:37,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:37,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334363169] [2019-11-20 07:27:37,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:38,121 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 07:27:38,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334363169] [2019-11-20 07:27:38,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703375558] [2019-11-20 07:27:38,121 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:38,285 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-20 07:27:38,285 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:27:38,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 07:27:38,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:38,414 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 07:27:38,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:38,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2019-11-20 07:27:38,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245270577] [2019-11-20 07:27:38,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 07:27:38,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:38,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 07:27:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2019-11-20 07:27:38,415 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 22 states. [2019-11-20 07:27:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:38,749 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2019-11-20 07:27:38,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 07:27:38,750 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 48 [2019-11-20 07:27:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:38,751 INFO L225 Difference]: With dead ends: 131 [2019-11-20 07:27:38,751 INFO L226 Difference]: Without dead ends: 76 [2019-11-20 07:27:38,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2019-11-20 07:27:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-11-20 07:27:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2019-11-20 07:27:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 07:27:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2019-11-20 07:27:38,764 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 48 [2019-11-20 07:27:38,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:38,766 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2019-11-20 07:27:38,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 07:27:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2019-11-20 07:27:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 07:27:38,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:38,767 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 07:27:38,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:38,971 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:38,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1708062953, now seen corresponding path program 7 times [2019-11-20 07:27:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:38,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919797884] [2019-11-20 07:27:38,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:39,113 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 07:27:39,113 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919797884] [2019-11-20 07:27:39,113 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946218760] [2019-11-20 07:27:39,113 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:39,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 07:27:39,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:39,315 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 07:27:39,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:39,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2019-11-20 07:27:39,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095900191] [2019-11-20 07:27:39,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 07:27:39,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:39,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 07:27:39,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-11-20 07:27:39,317 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 22 states. [2019-11-20 07:27:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:39,895 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2019-11-20 07:27:39,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-20 07:27:39,895 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 51 [2019-11-20 07:27:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:39,896 INFO L225 Difference]: With dead ends: 75 [2019-11-20 07:27:39,896 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 07:27:39,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 07:27:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 07:27:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2019-11-20 07:27:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 07:27:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-11-20 07:27:39,909 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 51 [2019-11-20 07:27:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:39,909 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-11-20 07:27:39,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 07:27:39,909 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-11-20 07:27:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-20 07:27:39,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:27:39,910 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 07:27:40,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:27:40,122 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:27:40,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:27:40,122 INFO L82 PathProgramCache]: Analyzing trace with hash 99891227, now seen corresponding path program 13 times [2019-11-20 07:27:40,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:27:40,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763392077] [2019-11-20 07:27:40,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:27:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:41,245 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 34 [2019-11-20 07:27:41,391 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2019-11-20 07:27:41,655 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2019-11-20 07:27:41,828 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 47 [2019-11-20 07:27:41,974 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2019-11-20 07:27:42,171 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 51 [2019-11-20 07:27:42,385 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 54 [2019-11-20 07:27:42,550 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 43 [2019-11-20 07:27:42,744 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 54 [2019-11-20 07:27:42,960 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 57 [2019-11-20 07:27:43,129 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2019-11-20 07:27:43,327 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2019-11-20 07:27:43,560 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-11-20 07:27:43,749 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2019-11-20 07:27:43,924 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-11-20 07:27:44,123 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-11-20 07:27:45,882 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 07:27:45,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763392077] [2019-11-20 07:27:45,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523488862] [2019-11-20 07:27:45,883 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:27:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:45,929 WARN L253 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 95 conjunts are in the unsatisfiable core [2019-11-20 07:27:45,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:27:45,934 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 07:27:45,935 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:45,941 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:45,944 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 07:27:45,944 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:45,950 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:45,950 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 07:27:45,951 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 07:27:45,989 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 07:27:45,989 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:45,997 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:45,997 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:45,997 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 07:27:46,091 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:46,091 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 07:27:46,092 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,114 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 07:27:46,114 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,114 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 07:27:46,239 INFO L343 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2019-11-20 07:27:46,239 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 07:27:46,239 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,266 INFO L567 ElimStorePlain]: treesize reduction 24, result has 66.7 percent of original size [2019-11-20 07:27:46,266 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,267 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 07:27:46,414 INFO L343 Elim1Store]: treesize reduction 122, result has 31.5 percent of original size [2019-11-20 07:27:46,415 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 07:27:46,415 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,446 INFO L567 ElimStorePlain]: treesize reduction 24, result has 71.4 percent of original size [2019-11-20 07:27:46,446 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,446 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 07:27:46,624 INFO L343 Elim1Store]: treesize reduction 210, result has 24.5 percent of original size [2019-11-20 07:27:46,624 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 07:27:46,624 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,672 INFO L567 ElimStorePlain]: treesize reduction 24, result has 75.0 percent of original size [2019-11-20 07:27:46,673 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:46,673 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2019-11-20 07:27:46,930 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-11-20 07:27:46,931 INFO L343 Elim1Store]: treesize reduction 112, result has 62.7 percent of original size [2019-11-20 07:27:46,931 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 07:27:46,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:47,002 INFO L567 ElimStorePlain]: treesize reduction 144, result has 34.2 percent of original size [2019-11-20 07:27:47,003 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:47,003 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 07:27:47,647 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 07:27:47,648 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 07:27:47,648 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 07:27:47,649 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:47,727 INFO L567 ElimStorePlain]: treesize reduction 369, result has 17.6 percent of original size [2019-11-20 07:27:47,727 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:47,727 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:79 [2019-11-20 07:27:48,217 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 07:27:48,218 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 07:27:48,218 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 07:27:48,219 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:48,289 INFO L567 ElimStorePlain]: treesize reduction 191, result has 27.7 percent of original size [2019-11-20 07:27:48,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:48,289 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:73 [2019-11-20 07:27:48,789 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 07:27:48,789 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 07:27:48,789 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 07:27:48,791 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:48,881 INFO L567 ElimStorePlain]: treesize reduction 195, result has 27.8 percent of original size [2019-11-20 07:27:48,881 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:48,881 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:75 [2019-11-20 07:27:49,526 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 74 [2019-11-20 07:27:49,526 INFO L343 Elim1Store]: treesize reduction 243, result has 53.4 percent of original size [2019-11-20 07:27:49,527 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 07:27:49,528 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:49,633 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2019-11-20 07:27:49,634 INFO L567 ElimStorePlain]: treesize reduction 167, result has 31.3 percent of original size [2019-11-20 07:27:49,634 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:49,634 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:76 [2019-11-20 07:27:50,374 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2019-11-20 07:27:50,375 INFO L343 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2019-11-20 07:27:50,375 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 07:27:50,376 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:50,464 INFO L567 ElimStorePlain]: treesize reduction 373, result has 16.7 percent of original size [2019-11-20 07:27:50,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:50,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:75 [2019-11-20 07:27:50,847 INFO L343 Elim1Store]: treesize reduction 304, result has 12.6 percent of original size [2019-11-20 07:27:50,847 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 07:27:50,848 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:50,866 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:50,866 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:50,866 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:70 [2019-11-20 07:27:51,190 INFO L343 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2019-11-20 07:27:51,190 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 07:27:51,191 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:51,240 INFO L567 ElimStorePlain]: treesize reduction 112, result has 42.0 percent of original size [2019-11-20 07:27:51,240 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:51,240 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:81 [2019-11-20 07:27:51,599 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2019-11-20 07:27:51,599 INFO L343 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2019-11-20 07:27:51,599 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 07:27:51,601 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:51,675 INFO L567 ElimStorePlain]: treesize reduction 308, result has 23.0 percent of original size [2019-11-20 07:27:51,675 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:51,676 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:92 [2019-11-20 07:27:52,136 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 100 [2019-11-20 07:27:52,136 INFO L343 Elim1Store]: treesize reduction 222, result has 53.8 percent of original size [2019-11-20 07:27:52,137 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 07:27:52,139 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:52,225 INFO L567 ElimStorePlain]: treesize reduction 459, result has 18.6 percent of original size [2019-11-20 07:27:52,225 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:52,225 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:105 [2019-11-20 07:27:52,562 INFO L343 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2019-11-20 07:27:52,562 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 07:27:52,563 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:52,621 INFO L567 ElimStorePlain]: treesize reduction 158, result has 38.3 percent of original size [2019-11-20 07:27:52,621 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:52,621 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:98 [2019-11-20 07:27:53,014 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2019-11-20 07:27:53,015 INFO L343 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2019-11-20 07:27:53,015 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 07:27:53,017 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:53,084 INFO L567 ElimStorePlain]: treesize reduction 336, result has 22.0 percent of original size [2019-11-20 07:27:53,084 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:27:53,084 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:95 [2019-11-20 07:27:53,346 INFO L343 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2019-11-20 07:27:53,347 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 07:27:53,347 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:27:53,366 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:27:53,366 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 07:27:53,367 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:108, output treesize:70 [2019-11-20 07:27:53,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:27:53,604 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 07:27:53,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:27:53,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 91 [2019-11-20 07:27:53,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22433774] [2019-11-20 07:27:53,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-11-20 07:27:53,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-11-20 07:27:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=876, Invalid=7314, Unknown=0, NotChecked=0, Total=8190 [2019-11-20 07:27:53,607 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 91 states. [2019-11-20 07:27:56,126 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 51 [2019-11-20 07:27:56,996 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2019-11-20 07:27:57,192 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 52 [2019-11-20 07:27:57,454 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 51 [2019-11-20 07:27:57,808 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 62 [2019-11-20 07:27:58,142 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 64 [2019-11-20 07:27:58,794 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-11-20 07:27:59,187 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2019-11-20 07:27:59,608 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 65 [2019-11-20 07:27:59,999 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2019-11-20 07:28:00,373 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2019-11-20 07:28:01,071 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2019-11-20 07:28:01,465 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-11-20 07:28:02,012 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-11-20 07:28:02,418 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2019-11-20 07:28:02,742 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 66 [2019-11-20 07:28:03,321 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-11-20 07:28:04,677 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-11-20 07:28:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:06,823 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2019-11-20 07:28:06,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-11-20 07:28:06,824 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 53 [2019-11-20 07:28:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:06,824 INFO L225 Difference]: With dead ends: 138 [2019-11-20 07:28:06,825 INFO L226 Difference]: Without dead ends: 99 [2019-11-20 07:28:06,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 9 SyntacticMatches, 5 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10699 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=2987, Invalid=25405, Unknown=0, NotChecked=0, Total=28392 [2019-11-20 07:28:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-20 07:28:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 83. [2019-11-20 07:28:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-20 07:28:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2019-11-20 07:28:06,846 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 53 [2019-11-20 07:28:06,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:06,847 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2019-11-20 07:28:06,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-11-20 07:28:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2019-11-20 07:28:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-20 07:28:06,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:06,848 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 07:28:07,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:07,051 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:07,051 INFO L82 PathProgramCache]: Analyzing trace with hash -996961989, now seen corresponding path program 8 times [2019-11-20 07:28:07,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:07,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025802353] [2019-11-20 07:28:07,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:07,231 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 07:28:07,232 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025802353] [2019-11-20 07:28:07,232 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794106486] [2019-11-20 07:28:07,232 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:07,295 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:28:07,295 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:07,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 07:28:07,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:07,497 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 07:28:07,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:07,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2019-11-20 07:28:07,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407276153] [2019-11-20 07:28:07,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 07:28:07,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 07:28:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2019-11-20 07:28:07,499 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 25 states. [2019-11-20 07:28:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:08,117 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2019-11-20 07:28:08,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-20 07:28:08,117 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 55 [2019-11-20 07:28:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:08,118 INFO L225 Difference]: With dead ends: 108 [2019-11-20 07:28:08,118 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 07:28:08,118 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 07:28:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 07:28:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2019-11-20 07:28:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 07:28:08,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2019-11-20 07:28:08,132 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 55 [2019-11-20 07:28:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:08,133 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2019-11-20 07:28:08,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 07:28:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2019-11-20 07:28:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 07:28:08,134 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:08,134 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 07:28:08,336 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:08,336 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:08,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1666550004, now seen corresponding path program 9 times [2019-11-20 07:28:08,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:08,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640281941] [2019-11-20 07:28:08,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:08,514 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 07:28:08,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640281941] [2019-11-20 07:28:08,515 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180291271] [2019-11-20 07:28:08,515 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:08,815 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-11-20 07:28:08,816 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:08,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 07:28:08,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:08,950 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 07:28:08,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:08,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2019-11-20 07:28:08,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727002286] [2019-11-20 07:28:08,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-20 07:28:08,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:08,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-20 07:28:08,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2019-11-20 07:28:08,951 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 25 states. [2019-11-20 07:28:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:09,195 INFO L93 Difference]: Finished difference Result 109 states and 117 transitions. [2019-11-20 07:28:09,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 07:28:09,196 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2019-11-20 07:28:09,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:09,196 INFO L225 Difference]: With dead ends: 109 [2019-11-20 07:28:09,196 INFO L226 Difference]: Without dead ends: 65 [2019-11-20 07:28:09,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2019-11-20 07:28:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-20 07:28:09,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2019-11-20 07:28:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 07:28:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2019-11-20 07:28:09,211 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 58 [2019-11-20 07:28:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:09,211 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2019-11-20 07:28:09,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-20 07:28:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2019-11-20 07:28:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-20 07:28:09,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:09,212 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 07:28:09,415 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:09,415 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:09,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:09,416 INFO L82 PathProgramCache]: Analyzing trace with hash 703185580, now seen corresponding path program 14 times [2019-11-20 07:28:09,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:09,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033033911] [2019-11-20 07:28:09,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:11,093 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2019-11-20 07:28:11,379 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 53 [2019-11-20 07:28:11,573 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-11-20 07:28:11,914 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2019-11-20 07:28:12,118 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 59 [2019-11-20 07:28:12,487 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2019-11-20 07:28:12,720 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 61 [2019-11-20 07:28:12,931 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 49 [2019-11-20 07:28:13,170 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2019-11-20 07:28:13,440 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-20 07:28:13,649 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2019-11-20 07:28:13,837 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-11-20 07:28:16,042 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 07:28:16,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033033911] [2019-11-20 07:28:16,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198443851] [2019-11-20 07:28:16,043 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:16,090 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:28:16,090 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:16,092 WARN L253 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 111 conjunts are in the unsatisfiable core [2019-11-20 07:28:16,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:16,109 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 07:28:16,109 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,122 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,123 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,123 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2019-11-20 07:28:16,189 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,190 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 07:28:16,190 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,202 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,202 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2019-11-20 07:28:16,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,356 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 07:28:16,356 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,369 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,369 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,370 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2019-11-20 07:28:16,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,519 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 07:28:16,519 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,531 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,532 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,532 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2019-11-20 07:28:16,691 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,692 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,693 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,693 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,694 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,695 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,696 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,698 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 07:28:16,699 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,714 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,714 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,714 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2019-11-20 07:28:16,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:16,889 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 07:28:16,889 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,909 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:16,909 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:16,909 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:73 [2019-11-20 07:28:17,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,092 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,093 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,094 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,094 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,095 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,098 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,099 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,101 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 07:28:17,102 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,121 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:17,121 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,122 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:85 [2019-11-20 07:28:17,305 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,306 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,330 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 07:28:17,330 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,354 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:17,354 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,354 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:88 [2019-11-20 07:28:17,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,858 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,860 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:17,861 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,861 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:17,871 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 07:28:17,872 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,897 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:17,897 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:17,897 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:90 [2019-11-20 07:28:18,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,168 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:18,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,184 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 07:28:18,185 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:18,211 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,211 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:93 [2019-11-20 07:28:18,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,513 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,520 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,521 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:18,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,522 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,524 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,524 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,526 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,529 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 07:28:18,529 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,552 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:18,552 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,553 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 07:28:18,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,875 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:18,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:18,891 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 07:28:18,891 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,915 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:18,915 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:18,915 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 07:28:19,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,275 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,277 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,278 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:19,279 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,281 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,281 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,301 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 07:28:19,301 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:19,334 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:19,334 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:19,335 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 07:28:19,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,721 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,729 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:19,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,737 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:19,738 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 07:28:19,739 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:19,763 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:19,764 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:19,764 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:88 [2019-11-20 07:28:20,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,159 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,163 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 07:28:20,163 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:20,184 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:83 [2019-11-20 07:28:20,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,428 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:20,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,439 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 07:28:20,440 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,463 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:20,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:90 [2019-11-20 07:28:20,696 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,697 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,698 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:20,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,705 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,706 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,706 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,707 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,714 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 07:28:20,714 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,738 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:20,738 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:20,739 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:116, output treesize:93 [2019-11-20 07:28:20,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:20,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,002 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:21,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,011 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 07:28:21,011 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,036 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:21,036 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,036 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:106 [2019-11-20 07:28:21,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,299 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,301 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,303 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:21,304 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,324 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,325 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,326 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,326 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,329 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,329 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,330 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,331 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,333 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 07:28:21,334 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,357 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:21,358 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,358 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:94 [2019-11-20 07:28:21,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,651 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:21,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,667 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 07:28:21,668 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,703 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:21,703 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:21,703 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:97 [2019-11-20 07:28:21,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,993 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:21,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:21,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:22,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:22,001 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 07:28:22,001 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:22,026 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:22,026 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:22,026 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:104 [2019-11-20 07:28:22,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:22,320 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 07:28:22,320 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:22,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:22,341 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 07:28:22,341 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:74 [2019-11-20 07:28:22,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:28:22,842 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 07:28:22,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:22,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 54] total 104 [2019-11-20 07:28:22,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111607475] [2019-11-20 07:28:22,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 104 states [2019-11-20 07:28:22,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:22,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2019-11-20 07:28:22,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1250, Invalid=9462, Unknown=0, NotChecked=0, Total=10712 [2019-11-20 07:28:22,846 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 104 states. [2019-11-20 07:28:25,933 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2019-11-20 07:28:26,410 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2019-11-20 07:28:28,083 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-11-20 07:28:28,442 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2019-11-20 07:28:29,329 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2019-11-20 07:28:29,713 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2019-11-20 07:28:29,929 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-11-20 07:28:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:31,477 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2019-11-20 07:28:31,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2019-11-20 07:28:31,478 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 60 [2019-11-20 07:28:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:31,478 INFO L225 Difference]: With dead ends: 174 [2019-11-20 07:28:31,479 INFO L226 Difference]: Without dead ends: 147 [2019-11-20 07:28:31,479 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 9 SyntacticMatches, 6 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7786 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=2510, Invalid=18082, Unknown=0, NotChecked=0, Total=20592 [2019-11-20 07:28:31,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-20 07:28:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 105. [2019-11-20 07:28:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 07:28:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2019-11-20 07:28:31,505 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 60 [2019-11-20 07:28:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:31,506 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2019-11-20 07:28:31,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 104 states. [2019-11-20 07:28:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2019-11-20 07:28:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-20 07:28:31,507 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:31,507 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 07:28:31,710 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:31,711 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:31,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1504710446, now seen corresponding path program 15 times [2019-11-20 07:28:31,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:31,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998675748] [2019-11-20 07:28:31,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:31,885 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 07:28:31,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998675748] [2019-11-20 07:28:31,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215627841] [2019-11-20 07:28:31,885 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:32,067 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-11-20 07:28:32,067 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:32,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 07:28:32,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:32,218 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 07:28:32,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:32,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2019-11-20 07:28:32,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602430508] [2019-11-20 07:28:32,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-20 07:28:32,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:32,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-20 07:28:32,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2019-11-20 07:28:32,220 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 28 states. [2019-11-20 07:28:32,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:32,585 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2019-11-20 07:28:32,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-20 07:28:32,585 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 62 [2019-11-20 07:28:32,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:32,586 INFO L225 Difference]: With dead ends: 179 [2019-11-20 07:28:32,586 INFO L226 Difference]: Without dead ends: 96 [2019-11-20 07:28:32,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2019-11-20 07:28:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-20 07:28:32,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 82. [2019-11-20 07:28:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 07:28:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2019-11-20 07:28:32,609 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 62 [2019-11-20 07:28:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:32,609 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2019-11-20 07:28:32,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-20 07:28:32,609 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2019-11-20 07:28:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-20 07:28:32,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:32,609 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 07:28:32,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:32,810 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:32,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:32,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1552401418, now seen corresponding path program 16 times [2019-11-20 07:28:32,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:32,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429874922] [2019-11-20 07:28:32,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:33,028 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 07:28:33,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429874922] [2019-11-20 07:28:33,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837303511] [2019-11-20 07:28:33,028 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:33,109 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:28:33,109 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:33,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 07:28:33,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:33,232 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 07:28:33,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:33,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2019-11-20 07:28:33,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998950017] [2019-11-20 07:28:33,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-20 07:28:33,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:33,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-20 07:28:33,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2019-11-20 07:28:33,234 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 28 states. [2019-11-20 07:28:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:28:33,756 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2019-11-20 07:28:33,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-20 07:28:33,756 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 62 [2019-11-20 07:28:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:28:33,756 INFO L225 Difference]: With dead ends: 91 [2019-11-20 07:28:33,757 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 07:28:33,757 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 07:28:33,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 07:28:33,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2019-11-20 07:28:33,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-20 07:28:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2019-11-20 07:28:33,772 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 62 [2019-11-20 07:28:33,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:28:33,772 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2019-11-20 07:28:33,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-20 07:28:33,773 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2019-11-20 07:28:33,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-20 07:28:33,773 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:28:33,773 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 07:28:33,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:28:33,977 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:28:33,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:28:33,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1720016189, now seen corresponding path program 17 times [2019-11-20 07:28:33,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:28:33,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565726005] [2019-11-20 07:28:33,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:28:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:28:35,436 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-11-20 07:28:35,704 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 53 [2019-11-20 07:28:35,881 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 56 [2019-11-20 07:28:36,189 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2019-11-20 07:28:36,383 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 56 [2019-11-20 07:28:36,540 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 45 [2019-11-20 07:28:36,748 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 56 [2019-11-20 07:28:36,975 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 59 [2019-11-20 07:28:37,173 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 49 [2019-11-20 07:28:37,417 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-11-20 07:28:37,688 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 62 [2019-11-20 07:28:37,905 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 52 [2019-11-20 07:28:38,185 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 61 [2019-11-20 07:28:38,490 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 64 [2019-11-20 07:28:38,728 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 54 [2019-11-20 07:28:38,952 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2019-11-20 07:28:39,209 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2019-11-20 07:28:39,438 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-11-20 07:28:39,659 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2019-11-20 07:28:39,971 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2019-11-20 07:28:42,031 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 07:28:42,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565726005] [2019-11-20 07:28:42,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914566832] [2019-11-20 07:28:42,032 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:28:43,408 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-11-20 07:28:43,408 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:28:43,414 WARN L253 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 125 conjunts are in the unsatisfiable core [2019-11-20 07:28:43,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:28:43,428 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 07:28:43,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,436 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,439 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 07:28:43,439 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,447 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,447 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 07:28:43,447 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 07:28:43,495 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 07:28:43,495 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,504 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,504 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,504 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 07:28:43,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,610 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 07:28:43,610 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,621 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,621 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,621 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2019-11-20 07:28:43,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,735 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 07:28:43,736 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,749 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,749 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2019-11-20 07:28:43,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:43,876 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 07:28:43,876 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,891 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:43,891 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:43,891 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2019-11-20 07:28:44,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,038 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,043 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 07:28:44,043 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,060 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:44,061 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,061 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 07:28:44,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,225 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,227 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 07:28:44,228 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,246 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:44,246 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,247 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-11-20 07:28:44,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,427 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 07:28:44,427 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,448 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:44,448 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,448 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:87 [2019-11-20 07:28:44,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:44,651 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 07:28:44,651 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,677 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:44,677 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:44,678 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:96 [2019-11-20 07:28:45,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,173 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:45,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,175 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,178 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,185 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,191 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 07:28:45,192 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,219 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:45,219 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,219 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:98 [2019-11-20 07:28:45,482 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:45,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,484 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,488 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,491 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,492 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,503 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,506 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,507 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,510 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,516 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 07:28:45,517 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,551 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:45,551 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,551 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 07:28:45,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,835 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,837 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,838 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,838 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,839 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,840 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,841 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,841 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,842 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,843 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,843 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,844 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:45,844 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,852 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,858 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,860 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,861 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:45,861 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 07:28:45,862 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,886 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:45,886 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:45,886 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 07:28:46,204 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,205 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,210 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,212 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,213 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,217 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:46,217 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,218 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,225 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,237 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 07:28:46,237 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:46,271 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:46,271 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:46,272 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:99 [2019-11-20 07:28:46,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,596 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,599 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,600 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:46,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,617 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 07:28:46,617 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:46,642 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:46,643 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:46,643 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 07:28:46,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:46,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,001 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:47,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,012 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,014 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 07:28:47,015 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,039 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:47,039 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,039 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:99 [2019-11-20 07:28:47,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,435 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,438 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,438 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:47,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,447 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,448 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,448 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,449 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,450 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 07:28:47,450 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,474 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:47,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,475 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:96 [2019-11-20 07:28:47,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:47,887 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 07:28:47,888 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,911 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:47,911 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:47,911 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:91 [2019-11-20 07:28:48,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,144 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,150 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:48,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,159 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,165 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 07:28:48,166 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,198 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:48,198 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,198 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:106 [2019-11-20 07:28:48,412 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:48,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,433 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,435 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 07:28:48,435 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,462 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:48,462 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,462 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:112 [2019-11-20 07:28:48,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,698 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,700 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,705 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,705 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,706 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,707 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,708 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:48,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,712 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,714 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,716 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,719 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,719 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,720 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 07:28:48,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,747 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:48,747 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:48,747 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2019-11-20 07:28:48,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:48,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,010 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:49,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,012 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,025 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,043 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 07:28:49,043 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,072 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:49,072 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,072 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:134 [2019-11-20 07:28:49,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,358 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,366 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:49,367 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,368 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,369 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,371 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,372 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,373 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,375 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,376 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,378 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,378 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,380 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 07:28:49,381 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,411 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:49,412 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,412 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:162, output treesize:167 [2019-11-20 07:28:49,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,737 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:49,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,739 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,739 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,740 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,741 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,743 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,744 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,745 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,747 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,749 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,750 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,750 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:49,752 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 07:28:49,753 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,782 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:49,782 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:49,782 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:117 [2019-11-20 07:28:50,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,134 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,135 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,138 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,138 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:28:50,139 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,140 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,144 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:28:50,153 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 07:28:50,154 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:50,185 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:50,185 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:28:50,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:116 [2019-11-20 07:28:50,543 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 07:28:50,544 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:28:50,567 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:28:50,567 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 07:28:50,568 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:106, output treesize:91 [2019-11-20 07:28:50,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:28:50,881 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 07:28:50,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:28:50,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 61] total 117 [2019-11-20 07:28:50,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720317970] [2019-11-20 07:28:50,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 117 states [2019-11-20 07:28:50,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:28:50,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2019-11-20 07:28:50,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1909, Invalid=11663, Unknown=0, NotChecked=0, Total=13572 [2019-11-20 07:28:50,883 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 117 states. [2019-11-20 07:28:52,962 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2019-11-20 07:28:53,186 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2019-11-20 07:28:53,409 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-11-20 07:28:53,616 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-11-20 07:28:53,772 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-11-20 07:28:54,520 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-11-20 07:28:54,784 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-11-20 07:28:55,177 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-11-20 07:28:55,399 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-11-20 07:28:56,356 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2019-11-20 07:28:56,771 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-11-20 07:28:57,571 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2019-11-20 07:28:58,073 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 76 [2019-11-20 07:28:58,653 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 78 [2019-11-20 07:28:59,166 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-11-20 07:29:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:29:00,453 INFO L93 Difference]: Finished difference Result 183 states and 204 transitions. [2019-11-20 07:29:00,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2019-11-20 07:29:00,453 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 67 [2019-11-20 07:29:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:29:00,454 INFO L225 Difference]: With dead ends: 183 [2019-11-20 07:29:00,454 INFO L226 Difference]: Without dead ends: 131 [2019-11-20 07:29:00,455 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 9 SyntacticMatches, 7 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12784 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=3764, Invalid=24628, Unknown=0, NotChecked=0, Total=28392 [2019-11-20 07:29:00,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-20 07:29:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 108. [2019-11-20 07:29:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-20 07:29:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2019-11-20 07:29:00,479 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 67 [2019-11-20 07:29:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:29:00,479 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2019-11-20 07:29:00,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 117 states. [2019-11-20 07:29:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2019-11-20 07:29:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-20 07:29:00,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:29:00,480 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 07:29:00,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:29:00,686 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:29:00,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:29:00,686 INFO L82 PathProgramCache]: Analyzing trace with hash -688187037, now seen corresponding path program 10 times [2019-11-20 07:29:00,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:29:00,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962897809] [2019-11-20 07:29:00,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:29:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:29:00,967 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 07:29:00,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962897809] [2019-11-20 07:29:00,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221491491] [2019-11-20 07:29:00,968 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:29:01,035 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:29:01,035 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:29:01,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 07:29:01,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:29:01,049 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 07:29:01,049 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,069 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:01,070 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,070 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 07:29:01,228 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:01,228 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 07:29:01,229 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,274 INFO L567 ElimStorePlain]: treesize reduction 32, result has 65.6 percent of original size [2019-11-20 07:29:01,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,276 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 07:29:01,276 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:61 [2019-11-20 07:29:01,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,451 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:01,452 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 07:29:01,452 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,458 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 07:29:01,458 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,527 INFO L567 ElimStorePlain]: treesize reduction 32, result has 72.6 percent of original size [2019-11-20 07:29:01,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,529 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 07:29:01,530 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:85 [2019-11-20 07:29:01,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:01,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 07:29:01,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,872 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 07:29:01,872 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,890 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 07:29:01,891 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,898 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,904 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:01,905 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 07:29:01,905 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:01,934 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:01,935 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 57 treesize of output 102 [2019-11-20 07:29:01,935 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,069 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-11-20 07:29:02,069 INFO L567 ElimStorePlain]: treesize reduction 44, result has 76.6 percent of original size [2019-11-20 07:29:02,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,071 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 07:29:02,071 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:218, output treesize:144 [2019-11-20 07:29:02,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 07:29:02,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,445 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-11-20 07:29:02,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-20 07:29:02,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,572 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 07:29:02,573 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,592 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 07:29:02,593 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,626 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:02,626 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 07:29:02,627 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,642 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 07:29:02,642 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,657 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 07:29:02,657 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:02,666 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 07:29:02,666 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:02,858 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-11-20 07:29:02,858 INFO L567 ElimStorePlain]: treesize reduction 35, result has 85.1 percent of original size [2019-11-20 07:29:02,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,860 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 07:29:02,861 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:315, output treesize:200 [2019-11-20 07:29:02,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:02,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-20 07:29:03,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-11-20 07:29:03,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,468 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:03,469 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 07:29:03,469 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,483 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 07:29:03,483 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,492 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,497 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 07:29:03,498 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,510 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,510 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 07:29:03,511 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,524 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 07:29:03,524 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,532 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,536 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,537 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 07:29:03,537 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,551 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 07:29:03,551 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:03,558 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 07:29:03,558 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:03,740 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2019-11-20 07:29:03,741 INFO L567 ElimStorePlain]: treesize reduction 35, result has 88.0 percent of original size [2019-11-20 07:29:03,741 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,742 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 07:29:03,743 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:421, output treesize:256 [2019-11-20 07:29:03,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 8 terms [2019-11-20 07:29:03,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:03,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,170 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-11-20 07:29:04,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 10 terms [2019-11-20 07:29:04,326 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,342 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:04,342 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 07:29:04,343 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,364 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,365 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 07:29:04,365 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,379 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,380 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 59 treesize of output 50 [2019-11-20 07:29:04,380 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,397 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 07:29:04,397 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,415 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 07:29:04,416 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,432 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 07:29:04,432 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,446 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 07:29:04,447 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,461 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 07:29:04,461 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,470 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,475 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 07:29:04,475 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:04,483 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 07:29:04,483 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:04,718 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2019-11-20 07:29:04,719 INFO L567 ElimStorePlain]: treesize reduction 35, result has 89.9 percent of original size [2019-11-20 07:29:04,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,720 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 07:29:04,720 INFO L221 ElimStorePlain]: Needed 11 recursive calls to eliminate 10 variables, input treesize:527, output treesize:312 [2019-11-20 07:29:04,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 10 terms [2019-11-20 07:29:04,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:04,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:05,277 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 150 [2019-11-20 07:29:05,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2019-11-20 07:29:05,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,478 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,481 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 07:29:05,482 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,491 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,502 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 07:29:05,502 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,519 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,520 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 07:29:05,521 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,531 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,537 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,542 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 07:29:05,542 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,552 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,562 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 07:29:05,562 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,591 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:05,591 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 07:29:05,591 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,620 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 07:29:05,621 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,637 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 07:29:05,637 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,653 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 07:29:05,653 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,668 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 07:29:05,669 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,680 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,683 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 07:29:05,684 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,692 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:05,693 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 07:29:05,693 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:05,982 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 161 [2019-11-20 07:29:05,982 INFO L567 ElimStorePlain]: treesize reduction 35, result has 91.3 percent of original size [2019-11-20 07:29:05,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:05,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:05,984 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 07:29:05,984 INFO L221 ElimStorePlain]: Needed 13 recursive calls to eliminate 12 variables, input treesize:633, output treesize:368 [2019-11-20 07:29:05,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:05,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 12 terms [2019-11-20 07:29:06,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,686 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2019-11-20 07:29:06,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 14 terms [2019-11-20 07:29:06,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,706 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,714 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,714 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,722 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,722 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,737 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:06,737 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 07:29:06,738 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,746 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,747 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,754 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,754 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,775 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,775 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,781 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,781 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,787 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,787 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,792 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,792 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,796 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,796 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,800 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,800 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,804 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,804 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,807 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:06,807 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:06,831 INFO L567 ElimStorePlain]: treesize reduction 6, result has 83.8 percent of original size [2019-11-20 07:29:06,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:06,832 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 07:29:06,832 INFO L221 ElimStorePlain]: Needed 15 recursive calls to eliminate 16 variables, input treesize:585, output treesize:19 [2019-11-20 07:29:06,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:07,061 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 07:29:07,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:29:07,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 42 [2019-11-20 07:29:07,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353109548] [2019-11-20 07:29:07,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-20 07:29:07,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:29:07,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-20 07:29:07,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1473, Unknown=0, NotChecked=0, Total=1722 [2019-11-20 07:29:07,063 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 42 states. [2019-11-20 07:29:08,198 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 51 [2019-11-20 07:29:08,631 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 53 [2019-11-20 07:29:09,939 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 27 [2019-11-20 07:29:10,362 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 36 [2019-11-20 07:29:10,624 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 37 [2019-11-20 07:29:11,417 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 36 [2019-11-20 07:29:11,656 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 157 [2019-11-20 07:29:12,855 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 67 [2019-11-20 07:29:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:29:13,371 INFO L93 Difference]: Finished difference Result 136 states and 148 transitions. [2019-11-20 07:29:13,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-11-20 07:29:13,371 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 69 [2019-11-20 07:29:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:29:13,372 INFO L225 Difference]: With dead ends: 136 [2019-11-20 07:29:13,372 INFO L226 Difference]: Without dead ends: 111 [2019-11-20 07:29:13,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2576 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1356, Invalid=7764, Unknown=0, NotChecked=0, Total=9120 [2019-11-20 07:29:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-20 07:29:13,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102. [2019-11-20 07:29:13,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 07:29:13,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2019-11-20 07:29:13,393 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 69 [2019-11-20 07:29:13,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:29:13,393 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2019-11-20 07:29:13,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-20 07:29:13,394 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2019-11-20 07:29:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-20 07:29:13,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:29:13,394 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 07:29:13,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:29:13,595 INFO L410 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:29:13,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:29:13,595 INFO L82 PathProgramCache]: Analyzing trace with hash 350761612, now seen corresponding path program 18 times [2019-11-20 07:29:13,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:29:13,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57829063] [2019-11-20 07:29:13,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:29:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:29:15,183 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 38 [2019-11-20 07:29:15,344 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2019-11-20 07:29:15,598 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 45 [2019-11-20 07:29:15,882 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 48 [2019-11-20 07:29:16,144 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 39 [2019-11-20 07:29:16,453 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 55 [2019-11-20 07:29:16,760 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 54 [2019-11-20 07:29:17,005 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 44 [2019-11-20 07:29:17,338 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 53 [2019-11-20 07:29:17,694 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 57 [2019-11-20 07:29:17,986 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 46 [2019-11-20 07:29:18,273 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 55 [2019-11-20 07:29:18,571 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 58 [2019-11-20 07:29:18,839 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 48 [2019-11-20 07:29:19,105 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 59 [2019-11-20 07:29:19,404 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 62 [2019-11-20 07:29:19,647 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 51 [2019-11-20 07:29:19,910 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 63 [2019-11-20 07:29:20,204 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 66 [2019-11-20 07:29:20,443 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 56 [2019-11-20 07:29:20,687 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2019-11-20 07:29:20,954 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 67 [2019-11-20 07:29:21,168 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 56 [2019-11-20 07:29:21,402 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2019-11-20 07:29:21,663 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-11-20 07:29:21,862 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-11-20 07:29:22,053 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-11-20 07:29:22,364 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2019-11-20 07:29:24,713 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 07:29:24,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57829063] [2019-11-20 07:29:24,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147071672] [2019-11-20 07:29:24,714 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:29:25,650 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2019-11-20 07:29:25,650 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:29:25,655 WARN L253 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 144 conjunts are in the unsatisfiable core [2019-11-20 07:29:25,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:29:25,660 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 07:29:25,661 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,669 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:25,669 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,670 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-11-20 07:29:25,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,724 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 07:29:25,724 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,734 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:25,734 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,735 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 07:29:25,849 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,850 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 30 treesize of output 32 [2019-11-20 07:29:25,851 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,863 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:25,863 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:25,863 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2019-11-20 07:29:25,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:25,990 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 07:29:25,990 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,004 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:26,004 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,005 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2019-11-20 07:29:26,139 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,140 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,141 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,142 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,144 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 07:29:26,144 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,160 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:26,160 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,160 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2019-11-20 07:29:26,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,317 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 07:29:26,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,336 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:26,336 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,336 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:76 [2019-11-20 07:29:26,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,503 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,506 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,522 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,524 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 07:29:26,524 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,546 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:26,546 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,546 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:82 [2019-11-20 07:29:26,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,737 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,739 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,740 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 07:29:26,740 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,764 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:26,765 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:26,765 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2019-11-20 07:29:26,960 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,964 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,964 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,967 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,972 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,974 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:26,980 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 07:29:26,981 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:27,008 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,008 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:100 [2019-11-20 07:29:27,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,224 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,225 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,226 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,228 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,228 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,229 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,231 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,235 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,235 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,243 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,245 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,247 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,248 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 07:29:27,249 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,308 INFO L567 ElimStorePlain]: treesize reduction 3, result has 97.4 percent of original size [2019-11-20 07:29:27,309 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,309 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:112 [2019-11-20 07:29:27,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,856 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,858 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,859 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,860 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,861 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,862 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,863 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,865 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,868 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:27,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,873 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,877 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,880 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,881 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,884 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:27,885 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 07:29:27,885 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,915 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:27,915 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:27,916 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:111 [2019-11-20 07:29:28,228 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,229 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,231 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,233 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,235 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,235 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:28,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,243 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,244 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,245 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,247 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,251 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,251 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,252 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,253 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,255 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 07:29:28,256 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:28,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:28,286 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:28,286 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:114 [2019-11-20 07:29:28,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,632 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:28,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:28,643 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 07:29:28,644 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:28,673 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:28,674 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:28,674 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:109 [2019-11-20 07:29:29,066 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,070 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,075 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,076 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,078 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,079 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,080 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,081 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:29,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,085 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,088 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,092 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,093 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,093 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,094 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,095 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,096 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 07:29:29,097 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:29,129 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:29,129 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:29,130 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:109 [2019-11-20 07:29:29,538 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,539 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,540 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,540 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,541 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,542 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,543 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,543 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,544 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,545 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,545 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,547 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,547 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,552 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,552 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:29,553 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,553 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,563 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,563 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,567 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 07:29:29,568 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:29,597 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:29,597 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:29,597 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:112 [2019-11-20 07:29:29,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,977 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:29,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,002 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 07:29:30,002 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:30,031 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:30,032 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:30,032 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:104 [2019-11-20 07:29:30,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,329 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,330 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,330 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,331 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,333 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,333 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,334 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,335 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,335 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,336 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,339 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,342 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,347 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,354 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:30,559 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-11-20 07:29:30,559 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:30,560 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 07:29:30,562 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:30,778 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2019-11-20 07:29:30,779 INFO L567 ElimStorePlain]: treesize reduction 462, result has 30.5 percent of original size [2019-11-20 07:29:30,779 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:30,779 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:203 [2019-11-20 07:29:31,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:31,370 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,371 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,373 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,374 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,375 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,376 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,378 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,380 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,381 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,384 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,392 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,399 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,401 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,403 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,405 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,540 INFO L237 Elim1Store]: Index analysis took 170 ms [2019-11-20 07:29:31,542 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 07:29:31,543 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,548 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:31,548 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,554 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:31,554 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,559 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:31,559 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,576 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-20 07:29:31,577 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,602 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:31,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,603 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,606 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,635 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:31,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,693 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 07:29:31,694 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,702 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,704 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,709 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,711 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,713 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,714 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,716 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,717 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,721 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,740 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,741 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,742 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,744 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,745 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,752 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,754 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,755 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,756 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,757 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,758 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,759 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,761 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,762 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,763 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,766 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,767 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,768 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,769 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,772 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,774 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,775 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,777 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,915 INFO L237 Elim1Store]: Index analysis took 213 ms [2019-11-20 07:29:31,970 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:31,970 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 07:29:31,971 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:31,978 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,994 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:31,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:31,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:32,006 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 07:29:32,007 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:32,434 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2019-11-20 07:29:32,434 INFO L567 ElimStorePlain]: treesize reduction 216, result has 70.5 percent of original size [2019-11-20 07:29:32,434 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-11-20 07:29:32,435 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1457, output treesize:515 [2019-11-20 07:29:32,754 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-20 07:29:33,084 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-20 07:29:33,479 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-11-20 07:29:33,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:33,488 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,490 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,491 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,493 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,494 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,502 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,503 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,504 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,505 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,509 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,511 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,517 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,520 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,532 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,533 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,534 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,535 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,536 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,538 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,539 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,540 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,541 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,542 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,552 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,553 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,555 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,556 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,561 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,566 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,572 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,721 INFO L237 Elim1Store]: Index analysis took 234 ms [2019-11-20 07:29:33,781 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:33,781 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 07:29:33,782 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:33,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,788 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:33,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,791 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,792 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,794 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,795 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,795 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,796 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,798 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,799 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,799 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,800 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,801 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,809 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,812 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:33,814 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 07:29:33,814 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:34,068 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2019-11-20 07:29:34,068 INFO L567 ElimStorePlain]: treesize reduction 171, result has 63.4 percent of original size [2019-11-20 07:29:34,068 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-20 07:29:34,068 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:355, output treesize:296 [2019-11-20 07:29:34,336 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-20 07:29:34,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:34,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:34,982 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,984 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,990 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,992 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,993 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,995 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:34,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,996 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:34,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,009 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 07:29:35,010 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,039 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:35,040 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,040 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:132, output treesize:119 [2019-11-20 07:29:35,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,299 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,301 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,301 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,304 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,304 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:35,305 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,306 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,317 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,322 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,323 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,323 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,325 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 07:29:35,326 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:35,357 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,357 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:125 [2019-11-20 07:29:35,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,647 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:35,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,652 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,660 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:35,662 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 07:29:35,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,695 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:35,695 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:35,695 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:124 [2019-11-20 07:29:36,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,018 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,020 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,021 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,022 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,023 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,024 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,025 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,025 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,029 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,031 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:36,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,034 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,038 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,044 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,047 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,049 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 07:29:36,050 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,088 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:36,088 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,089 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:117 [2019-11-20 07:29:36,405 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,411 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,412 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,413 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,416 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,417 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,418 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:36,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,421 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,422 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,426 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,427 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,428 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,431 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,433 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 07:29:36,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,464 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:36,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:117 [2019-11-20 07:29:36,769 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,769 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,771 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,772 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,772 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,774 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,774 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,775 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,776 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,777 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,777 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,780 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,784 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,785 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,786 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,786 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,787 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:29:36,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,791 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,796 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,798 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,799 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,799 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,800 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,801 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:36,803 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 07:29:36,804 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,833 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:36,834 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:36,834 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:143, output treesize:120 [2019-11-20 07:29:37,143 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,144 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,145 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,146 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,147 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,148 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,149 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,150 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,156 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,159 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,161 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,164 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,169 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 07:29:37,169 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:37,224 INFO L567 ElimStorePlain]: treesize reduction 3, result has 97.3 percent of original size [2019-11-20 07:29:37,224 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:37,224 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:110 [2019-11-20 07:29:37,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,388 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,389 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,390 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,392 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,393 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,398 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,399 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,401 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,402 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,403 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,404 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,405 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,406 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,408 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,410 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,443 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:37,443 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 07:29:37,444 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:37,521 INFO L567 ElimStorePlain]: treesize reduction 230, result has 35.9 percent of original size [2019-11-20 07:29:37,522 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:29:37,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:135, output treesize:129 [2019-11-20 07:29:37,866 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,876 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:29:37,945 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:29:37,945 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 07:29:37,948 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:29:38,043 INFO L567 ElimStorePlain]: treesize reduction 510, result has 17.7 percent of original size [2019-11-20 07:29:38,044 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 07:29:38,044 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:136, output treesize:110 [2019-11-20 07:29:38,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:29:38,856 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 07:29:38,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:29:38,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 70] total 132 [2019-11-20 07:29:38,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582725869] [2019-11-20 07:29:38,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 132 states [2019-11-20 07:29:38,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:29:38,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2019-11-20 07:29:38,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2159, Invalid=15133, Unknown=0, NotChecked=0, Total=17292 [2019-11-20 07:29:38,858 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand 132 states. [2019-11-20 07:29:42,033 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-11-20 07:29:42,380 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-11-20 07:29:46,466 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 76 [2019-11-20 07:29:46,980 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 82 [2019-11-20 07:29:47,568 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 84 [2019-11-20 07:29:47,979 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-11-20 07:29:48,528 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-11-20 07:29:49,241 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 64 [2019-11-20 07:29:50,013 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 68 [2019-11-20 07:29:51,162 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 85 [2019-11-20 07:29:51,404 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-11-20 07:29:51,896 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 61 [2019-11-20 07:29:52,141 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-11-20 07:29:52,400 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2019-11-20 07:29:52,851 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 60 [2019-11-20 07:29:53,269 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2019-11-20 07:29:53,605 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 61 [2019-11-20 07:29:53,971 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-11-20 07:29:56,162 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 64 [2019-11-20 07:29:56,444 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2019-11-20 07:29:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:29:57,422 INFO L93 Difference]: Finished difference Result 240 states and 267 transitions. [2019-11-20 07:29:57,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2019-11-20 07:29:57,422 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 74 [2019-11-20 07:29:57,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:29:57,423 INFO L225 Difference]: With dead ends: 240 [2019-11-20 07:29:57,423 INFO L226 Difference]: Without dead ends: 181 [2019-11-20 07:29:57,424 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 7 SyntacticMatches, 8 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20527 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=5332, Invalid=41540, Unknown=0, NotChecked=0, Total=46872 [2019-11-20 07:29:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-20 07:29:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 122. [2019-11-20 07:29:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-20 07:29:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2019-11-20 07:29:57,451 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 74 [2019-11-20 07:29:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:29:57,451 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2019-11-20 07:29:57,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 132 states. [2019-11-20 07:29:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2019-11-20 07:29:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-20 07:29:57,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:29:57,451 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 07:29:57,655 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:29:57,655 INFO L410 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:29:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:29:57,656 INFO L82 PathProgramCache]: Analyzing trace with hash -229056025, now seen corresponding path program 11 times [2019-11-20 07:29:57,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:29:57,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414279067] [2019-11-20 07:29:57,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:29:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:29:57,894 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 07:29:57,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414279067] [2019-11-20 07:29:57,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874021534] [2019-11-20 07:29:57,895 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:30:11,933 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2019-11-20 07:30:11,933 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:30:11,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-20 07:30:11,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:30:12,170 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 07:30:12,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:30:12,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 32 [2019-11-20 07:30:12,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068670322] [2019-11-20 07:30:12,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-11-20 07:30:12,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:30:12,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-11-20 07:30:12,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2019-11-20 07:30:12,172 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 32 states. [2019-11-20 07:30:12,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:30:12,532 INFO L93 Difference]: Finished difference Result 200 states and 215 transitions. [2019-11-20 07:30:12,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-20 07:30:12,532 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 75 [2019-11-20 07:30:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:30:12,533 INFO L225 Difference]: With dead ends: 200 [2019-11-20 07:30:12,533 INFO L226 Difference]: Without dead ends: 144 [2019-11-20 07:30:12,534 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 07:30:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-20 07:30:12,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 121. [2019-11-20 07:30:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-20 07:30:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 132 transitions. [2019-11-20 07:30:12,573 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 132 transitions. Word has length 75 [2019-11-20 07:30:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:30:12,573 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 132 transitions. [2019-11-20 07:30:12,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-11-20 07:30:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 132 transitions. [2019-11-20 07:30:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-11-20 07:30:12,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:30:12,574 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 07:30:12,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:30:12,783 INFO L410 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:30:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:30:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash -2019475348, now seen corresponding path program 12 times [2019-11-20 07:30:12,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:30:12,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638392013] [2019-11-20 07:30:12,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:30:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:30:13,074 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 07:30:13,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638392013] [2019-11-20 07:30:13,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337155494] [2019-11-20 07:30:13,075 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:30:14,428 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2019-11-20 07:30:14,428 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:30:14,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-20 07:30:14,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:30:14,645 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 07:30:14,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:30:14,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 36 [2019-11-20 07:30:14,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565949553] [2019-11-20 07:30:14,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-11-20 07:30:14,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:30:14,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-11-20 07:30:14,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2019-11-20 07:30:14,646 INFO L87 Difference]: Start difference. First operand 121 states and 132 transitions. Second operand 36 states. [2019-11-20 07:30:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:30:15,358 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2019-11-20 07:30:15,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-20 07:30:15,358 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 76 [2019-11-20 07:30:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:30:15,359 INFO L225 Difference]: With dead ends: 158 [2019-11-20 07:30:15,359 INFO L226 Difference]: Without dead ends: 131 [2019-11-20 07:30:15,360 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 07:30:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-20 07:30:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 112. [2019-11-20 07:30:15,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-20 07:30:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2019-11-20 07:30:15,384 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 76 [2019-11-20 07:30:15,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:30:15,384 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2019-11-20 07:30:15,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-11-20 07:30:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2019-11-20 07:30:15,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 07:30:15,385 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:30:15,385 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 07:30:15,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:30:15,590 INFO L410 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:30:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:30:15,590 INFO L82 PathProgramCache]: Analyzing trace with hash -2122516629, now seen corresponding path program 19 times [2019-11-20 07:30:15,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:30:15,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974893248] [2019-11-20 07:30:15,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:30:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:30:17,908 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2019-11-20 07:30:18,070 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2019-11-20 07:30:18,246 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 60 [2019-11-20 07:30:18,598 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 62 [2019-11-20 07:30:18,807 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2019-11-20 07:30:18,974 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 48 [2019-11-20 07:30:19,191 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 58 [2019-11-20 07:30:19,428 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2019-11-20 07:30:19,645 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 51 [2019-11-20 07:30:19,903 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 60 [2019-11-20 07:30:20,178 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2019-11-20 07:30:20,399 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 58 [2019-11-20 07:30:20,687 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 64 [2019-11-20 07:30:20,988 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 68 [2019-11-20 07:30:21,236 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 56 [2019-11-20 07:30:21,544 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 66 [2019-11-20 07:30:21,871 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 70 [2019-11-20 07:30:22,137 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 59 [2019-11-20 07:30:22,382 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2019-11-20 07:30:22,679 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2019-11-20 07:30:22,902 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-11-20 07:30:23,116 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2019-11-20 07:30:23,291 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-11-20 07:30:23,473 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-11-20 07:30:23,642 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 56 [2019-11-20 07:30:24,025 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2019-11-20 07:30:24,232 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2019-11-20 07:30:27,233 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 07:30:27,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974893248] [2019-11-20 07:30:27,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26180207] [2019-11-20 07:30:27,234 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:30:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:30:27,305 WARN L253 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 147 conjunts are in the unsatisfiable core [2019-11-20 07:30:27,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:30:27,317 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 07:30:27,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,328 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:27,332 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 07:30:27,333 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,342 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:27,342 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 07:30:27,343 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-11-20 07:30:27,426 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 07:30:27,427 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,436 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:27,436 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,436 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-11-20 07:30:27,651 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:27,652 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 07:30:27,652 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,687 INFO L567 ElimStorePlain]: treesize reduction 24, result has 60.0 percent of original size [2019-11-20 07:30:27,688 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,688 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2019-11-20 07:30:27,916 INFO L343 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2019-11-20 07:30:27,916 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 07:30:27,917 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,945 INFO L567 ElimStorePlain]: treesize reduction 24, result has 66.7 percent of original size [2019-11-20 07:30:27,945 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:27,945 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-20 07:30:28,166 INFO L343 Elim1Store]: treesize reduction 122, result has 31.5 percent of original size [2019-11-20 07:30:28,166 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 07:30:28,167 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,201 INFO L567 ElimStorePlain]: treesize reduction 24, result has 71.4 percent of original size [2019-11-20 07:30:28,201 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,201 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-11-20 07:30:28,467 INFO L343 Elim1Store]: treesize reduction 210, result has 24.5 percent of original size [2019-11-20 07:30:28,467 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 07:30:28,468 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,501 INFO L567 ElimStorePlain]: treesize reduction 24, result has 75.0 percent of original size [2019-11-20 07:30:28,501 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,502 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2019-11-20 07:30:28,783 INFO L343 Elim1Store]: treesize reduction 316, result has 20.2 percent of original size [2019-11-20 07:30:28,784 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 07:30:28,784 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,824 INFO L567 ElimStorePlain]: treesize reduction 24, result has 77.8 percent of original size [2019-11-20 07:30:28,825 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:28,825 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2019-11-20 07:30:29,146 INFO L343 Elim1Store]: treesize reduction 440, result has 17.3 percent of original size [2019-11-20 07:30:29,147 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 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 07:30:29,147 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:29,192 INFO L567 ElimStorePlain]: treesize reduction 24, result has 80.0 percent of original size [2019-11-20 07:30:29,192 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:29,192 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:96 [2019-11-20 07:30:29,561 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 48 [2019-11-20 07:30:29,561 INFO L343 Elim1Store]: treesize reduction 582, result has 15.2 percent of original size [2019-11-20 07:30:29,561 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 07:30:29,562 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:29,613 INFO L567 ElimStorePlain]: treesize reduction 24, result has 81.8 percent of original size [2019-11-20 07:30:29,613 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:29,613 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:108 [2019-11-20 07:30:30,037 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 53 [2019-11-20 07:30:30,037 INFO L343 Elim1Store]: treesize reduction 742, result has 13.5 percent of original size [2019-11-20 07:30:30,037 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 07:30:30,038 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:30,093 INFO L567 ElimStorePlain]: treesize reduction 24, result has 83.3 percent of original size [2019-11-20 07:30:30,094 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:30,094 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:120 [2019-11-20 07:30:30,587 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 58 [2019-11-20 07:30:30,588 INFO L343 Elim1Store]: treesize reduction 920, result has 12.2 percent of original size [2019-11-20 07:30:30,588 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 07:30:30,589 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:30,655 INFO L567 ElimStorePlain]: treesize reduction 24, result has 84.9 percent of original size [2019-11-20 07:30:30,655 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:30,656 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:135 [2019-11-20 07:30:32,192 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 07:30:32,192 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 07:30:32,193 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 07:30:32,195 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:32,339 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2019-11-20 07:30:32,340 INFO L567 ElimStorePlain]: treesize reduction 617, result has 15.7 percent of original size [2019-11-20 07:30:32,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:32,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:115 [2019-11-20 07:30:33,442 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 124 [2019-11-20 07:30:33,442 INFO L343 Elim1Store]: treesize reduction 625, result has 44.8 percent of original size [2019-11-20 07:30:33,443 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 07:30:33,444 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:33,553 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 63 [2019-11-20 07:30:33,554 INFO L567 ElimStorePlain]: treesize reduction 281, result has 28.9 percent of original size [2019-11-20 07:30:33,554 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:33,555 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:114 [2019-11-20 07:30:34,743 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 07:30:34,744 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 07:30:34,744 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 07:30:34,746 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:34,868 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 60 [2019-11-20 07:30:34,868 INFO L567 ElimStorePlain]: treesize reduction 317, result has 25.6 percent of original size [2019-11-20 07:30:34,868 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:34,868 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:109 [2019-11-20 07:30:35,965 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 07:30:35,966 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 07:30:35,966 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 07:30:35,968 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:36,111 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2019-11-20 07:30:36,112 INFO L567 ElimStorePlain]: treesize reduction 619, result has 15.4 percent of original size [2019-11-20 07:30:36,112 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:36,112 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:113 [2019-11-20 07:30:37,226 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 122 [2019-11-20 07:30:37,227 INFO L343 Elim1Store]: treesize reduction 607, result has 45.1 percent of original size [2019-11-20 07:30:37,227 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 07:30:37,229 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:37,351 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-11-20 07:30:37,351 INFO L567 ElimStorePlain]: treesize reduction 291, result has 28.1 percent of original size [2019-11-20 07:30:37,351 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:37,351 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:114 [2019-11-20 07:30:38,462 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 115 [2019-11-20 07:30:38,462 INFO L343 Elim1Store]: treesize reduction 692, result has 39.7 percent of original size [2019-11-20 07:30:38,462 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 07:30:38,464 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:38,592 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2019-11-20 07:30:38,592 INFO L567 ElimStorePlain]: treesize reduction 495, result has 19.4 percent of original size [2019-11-20 07:30:38,593 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:38,593 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:151, output treesize:119 [2019-11-20 07:30:39,726 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 108 [2019-11-20 07:30:39,727 INFO L343 Elim1Store]: treesize reduction 777, result has 34.7 percent of original size [2019-11-20 07:30:39,727 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 07:30:39,728 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:39,843 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2019-11-20 07:30:39,844 INFO L567 ElimStorePlain]: treesize reduction 233, result has 33.6 percent of original size [2019-11-20 07:30:39,844 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:39,844 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:118 [2019-11-20 07:30:41,072 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 129 [2019-11-20 07:30:41,073 INFO L343 Elim1Store]: treesize reduction 522, result has 50.9 percent of original size [2019-11-20 07:30:41,073 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 07:30:41,075 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:41,223 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2019-11-20 07:30:41,224 INFO L567 ElimStorePlain]: treesize reduction 619, result has 15.4 percent of original size [2019-11-20 07:30:41,224 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:41,224 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:145, output treesize:113 [2019-11-20 07:30:42,439 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 122 [2019-11-20 07:30:42,440 INFO L343 Elim1Store]: treesize reduction 607, result has 45.1 percent of original size [2019-11-20 07:30:42,440 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 07:30:42,442 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:42,585 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 62 [2019-11-20 07:30:42,585 INFO L567 ElimStorePlain]: treesize reduction 557, result has 17.2 percent of original size [2019-11-20 07:30:42,585 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:42,586 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:116 [2019-11-20 07:30:43,372 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 48 [2019-11-20 07:30:43,372 INFO L343 Elim1Store]: treesize reduction 768, result has 9.4 percent of original size [2019-11-20 07:30:43,372 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 07:30:43,373 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:43,456 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:43,456 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:43,456 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:106 [2019-11-20 07:30:44,070 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 07:30:44,070 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 07:30:44,070 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 07:30:44,072 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:44,155 INFO L567 ElimStorePlain]: treesize reduction 248, result has 32.1 percent of original size [2019-11-20 07:30:44,155 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:44,156 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:117 [2019-11-20 07:30:44,809 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 07:30:44,809 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 07:30:44,810 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 07:30:44,812 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:44,894 INFO L567 ElimStorePlain]: treesize reduction 244, result has 33.9 percent of original size [2019-11-20 07:30:44,894 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:44,895 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:125 [2019-11-20 07:30:45,521 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 07:30:45,528 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 07:30:45,528 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 07:30:45,531 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:45,617 INFO L567 ElimStorePlain]: treesize reduction 296, result has 29.5 percent of original size [2019-11-20 07:30:45,618 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:45,618 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:146, output treesize:124 [2019-11-20 07:30:46,383 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 117 [2019-11-20 07:30:46,383 INFO L343 Elim1Store]: treesize reduction 539, result has 34.7 percent of original size [2019-11-20 07:30:46,383 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 07:30:46,386 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:46,502 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 66 [2019-11-20 07:30:46,503 INFO L567 ElimStorePlain]: treesize reduction 516, result has 20.0 percent of original size [2019-11-20 07:30:46,503 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:46,503 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:129 [2019-11-20 07:30:47,462 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 160 [2019-11-20 07:30:47,462 INFO L343 Elim1Store]: treesize reduction 574, result has 43.1 percent of original size [2019-11-20 07:30:47,463 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 07:30:47,466 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:47,606 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 65 [2019-11-20 07:30:47,607 INFO L567 ElimStorePlain]: treesize reduction 961, result has 12.9 percent of original size [2019-11-20 07:30:47,607 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:47,607 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:142 [2019-11-20 07:30:48,631 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 184 [2019-11-20 07:30:48,632 INFO L343 Elim1Store]: treesize reduction 521, result has 50.1 percent of original size [2019-11-20 07:30:48,632 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 07:30:48,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:48,822 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 68 [2019-11-20 07:30:48,822 INFO L567 ElimStorePlain]: treesize reduction 1207, result has 11.3 percent of original size [2019-11-20 07:30:48,822 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:48,823 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:153 [2019-11-20 07:30:49,802 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 165 [2019-11-20 07:30:49,802 INFO L343 Elim1Store]: treesize reduction 427, result has 52.1 percent of original size [2019-11-20 07:30:49,803 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 07:30:49,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:49,948 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 66 [2019-11-20 07:30:49,949 INFO L567 ElimStorePlain]: treesize reduction 676, result has 16.6 percent of original size [2019-11-20 07:30:49,949 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:49,949 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:171, output treesize:135 [2019-11-20 07:30:50,661 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 74 [2019-11-20 07:30:50,666 INFO L343 Elim1Store]: treesize reduction 522, result has 21.0 percent of original size [2019-11-20 07:30:50,667 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 07:30:50,668 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:50,755 INFO L567 ElimStorePlain]: treesize reduction 334, result has 27.4 percent of original size [2019-11-20 07:30:50,755 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:50,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:126 [2019-11-20 07:30:51,681 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 117 [2019-11-20 07:30:51,682 INFO L343 Elim1Store]: treesize reduction 539, result has 34.7 percent of original size [2019-11-20 07:30:51,682 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 07:30:51,685 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:51,812 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 66 [2019-11-20 07:30:51,813 INFO L567 ElimStorePlain]: treesize reduction 536, result has 19.4 percent of original size [2019-11-20 07:30:51,813 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:30:51,813 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:152, output treesize:129 [2019-11-20 07:30:52,368 INFO L343 Elim1Store]: treesize reduction 522, result has 0.2 percent of original size [2019-11-20 07:30:52,368 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 07:30:52,369 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:30:52,399 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:30:52,399 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 07:30:52,399 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:144, output treesize:112 [2019-11-20 07:30:52,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:30:52,906 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 07:30:52,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:30:52,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 75] total 143 [2019-11-20 07:30:52,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277401539] [2019-11-20 07:30:52,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 143 states [2019-11-20 07:30:52,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:30:52,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2019-11-20 07:30:52,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=19082, Unknown=0, NotChecked=0, Total=20306 [2019-11-20 07:30:52,908 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand 143 states. [2019-11-20 07:30:57,171 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-11-20 07:30:57,864 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-11-20 07:31:01,042 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2019-11-20 07:31:01,551 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2019-11-20 07:31:03,238 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 79 [2019-11-20 07:31:03,741 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 81 [2019-11-20 07:31:04,287 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2019-11-20 07:31:04,771 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2019-11-20 07:31:05,254 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 70 [2019-11-20 07:31:05,954 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 78 [2019-11-20 07:31:06,484 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2019-11-20 07:31:06,937 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2019-11-20 07:31:07,519 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 78 [2019-11-20 07:31:08,220 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2019-11-20 07:31:08,884 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 87 [2019-11-20 07:31:09,649 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 83 [2019-11-20 07:31:10,291 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 90 [2019-11-20 07:31:10,849 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2019-11-20 07:31:11,582 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 82 [2019-11-20 07:31:12,218 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 91 [2019-11-20 07:31:12,824 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2019-11-20 07:31:13,497 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 85 [2019-11-20 07:31:13,993 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-11-20 07:31:14,531 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2019-11-20 07:31:15,060 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2019-11-20 07:31:15,426 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 97 [2019-11-20 07:31:16,047 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 97 [2019-11-20 07:31:16,325 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-11-20 07:31:17,531 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 89 [2019-11-20 07:31:17,886 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2019-11-20 07:31:18,714 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2019-11-20 07:31:21,237 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2019-11-20 07:31:21,908 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-11-20 07:31:25,456 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 82 [2019-11-20 07:31:25,989 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 77 [2019-11-20 07:31:26,286 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2019-11-20 07:31:26,837 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 76 [2019-11-20 07:31:34,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:31:34,153 INFO L93 Difference]: Finished difference Result 294 states and 333 transitions. [2019-11-20 07:31:34,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-11-20 07:31:34,154 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 81 [2019-11-20 07:31:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:31:34,155 INFO L225 Difference]: With dead ends: 294 [2019-11-20 07:31:34,155 INFO L226 Difference]: Without dead ends: 250 [2019-11-20 07:31:34,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 9 SyntacticMatches, 9 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23936 ImplicationChecksByTransitivity, 54.2s TimeCoverageRelationStatistics Valid=5806, Invalid=68996, Unknown=0, NotChecked=0, Total=74802 [2019-11-20 07:31:34,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-11-20 07:31:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 164. [2019-11-20 07:31:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-20 07:31:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2019-11-20 07:31:34,200 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 81 [2019-11-20 07:31:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:31:34,200 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2019-11-20 07:31:34,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 143 states. [2019-11-20 07:31:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2019-11-20 07:31:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-11-20 07:31:34,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:31:34,201 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 07:31:34,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:31:34,405 INFO L410 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:31:34,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:31:34,405 INFO L82 PathProgramCache]: Analyzing trace with hash -640335440, now seen corresponding path program 13 times [2019-11-20 07:31:34,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:31:34,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159426464] [2019-11-20 07:31:34,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:31:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:31:34,678 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 07:31:34,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159426464] [2019-11-20 07:31:34,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989902333] [2019-11-20 07:31:34,678 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:31:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:31:34,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 07:31:34,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:31:34,974 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 07:31:34,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:31:34,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2019-11-20 07:31:34,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334524819] [2019-11-20 07:31:34,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 07:31:34,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:31:34,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 07:31:34,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 07:31:34,975 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand 34 states. [2019-11-20 07:31:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:31:35,355 INFO L93 Difference]: Finished difference Result 226 states and 247 transitions. [2019-11-20 07:31:35,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-20 07:31:35,356 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 82 [2019-11-20 07:31:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:31:35,356 INFO L225 Difference]: With dead ends: 226 [2019-11-20 07:31:35,356 INFO L226 Difference]: Without dead ends: 165 [2019-11-20 07:31:35,357 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 07:31:35,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-20 07:31:35,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 134. [2019-11-20 07:31:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-20 07:31:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2019-11-20 07:31:35,390 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 82 [2019-11-20 07:31:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:31:35,390 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2019-11-20 07:31:35,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 07:31:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2019-11-20 07:31:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-20 07:31:35,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:31:35,391 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 07:31:35,591 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:31:35,592 INFO L410 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:31:35,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:31:35,592 INFO L82 PathProgramCache]: Analyzing trace with hash 424218669, now seen corresponding path program 20 times [2019-11-20 07:31:35,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:31:35,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878430555] [2019-11-20 07:31:35,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:31:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:31:35,878 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 07:31:35,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878430555] [2019-11-20 07:31:35,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491587360] [2019-11-20 07:31:35,878 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:31:35,955 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:31:35,955 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:31:35,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-20 07:31:35,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:31:36,331 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 07:31:36,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:31:36,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 37 [2019-11-20 07:31:36,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364640449] [2019-11-20 07:31:36,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-11-20 07:31:36,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:31:36,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-11-20 07:31:36,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2019-11-20 07:31:36,332 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand 37 states. [2019-11-20 07:31:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:31:36,871 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2019-11-20 07:31:36,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-20 07:31:36,871 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 83 [2019-11-20 07:31:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:31:36,872 INFO L225 Difference]: With dead ends: 237 [2019-11-20 07:31:36,872 INFO L226 Difference]: Without dead ends: 128 [2019-11-20 07:31:36,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=537, Invalid=1719, Unknown=0, NotChecked=0, Total=2256 [2019-11-20 07:31:36,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-20 07:31:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 111. [2019-11-20 07:31:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 07:31:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2019-11-20 07:31:36,901 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 120 transitions. Word has length 83 [2019-11-20 07:31:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:31:36,901 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 120 transitions. [2019-11-20 07:31:36,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-11-20 07:31:36,901 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 120 transitions. [2019-11-20 07:31:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-20 07:31:36,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:31:36,901 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 07:31:37,102 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:31:37,102 INFO L410 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:31:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:31:37,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1468785459, now seen corresponding path program 21 times [2019-11-20 07:31:37,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:31:37,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592038026] [2019-11-20 07:31:37,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:31:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:31:37,414 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 07:31:37,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592038026] [2019-11-20 07:31:37,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811669315] [2019-11-20 07:31:37,415 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:31:39,067 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-11-20 07:31:39,067 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:31:39,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-20 07:31:39,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:31:39,376 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 07:31:39,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:31:39,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 27] total 39 [2019-11-20 07:31:39,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610307386] [2019-11-20 07:31:39,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-20 07:31:39,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:31:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-20 07:31:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1123, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 07:31:39,378 INFO L87 Difference]: Start difference. First operand 111 states and 120 transitions. Second operand 39 states. [2019-11-20 07:31:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:31:40,195 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2019-11-20 07:31:40,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-20 07:31:40,196 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 83 [2019-11-20 07:31:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:31:40,196 INFO L225 Difference]: With dead ends: 123 [2019-11-20 07:31:40,196 INFO L226 Difference]: Without dead ends: 97 [2019-11-20 07:31:40,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2019-11-20 07:31:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-20 07:31:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2019-11-20 07:31:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-20 07:31:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2019-11-20 07:31:40,226 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 83 [2019-11-20 07:31:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:31:40,227 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2019-11-20 07:31:40,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-20 07:31:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2019-11-20 07:31:40,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-20 07:31:40,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:31:40,228 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 07:31:40,432 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:31:40,433 INFO L410 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:31:40,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:31:40,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1717398420, now seen corresponding path program 22 times [2019-11-20 07:31:40,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:31:40,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203494972] [2019-11-20 07:31:40,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:31:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:31:42,761 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 51 [2019-11-20 07:31:43,005 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 54 [2019-11-20 07:31:43,356 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 52 [2019-11-20 07:31:43,574 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 55 [2019-11-20 07:31:43,974 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 56 [2019-11-20 07:31:44,226 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 58 [2019-11-20 07:31:44,424 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2019-11-20 07:31:44,691 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-11-20 07:31:45,008 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 62 [2019-11-20 07:31:45,241 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 53 [2019-11-20 07:31:45,575 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 63 [2019-11-20 07:31:45,962 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 66 [2019-11-20 07:31:46,221 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 55 [2019-11-20 07:31:46,568 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 65 [2019-11-20 07:31:46,957 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-11-20 07:31:47,251 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 58 [2019-11-20 07:31:47,633 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 68 [2019-11-20 07:31:48,045 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 71 [2019-11-20 07:31:48,371 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 60 [2019-11-20 07:31:48,790 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2019-11-20 07:31:49,268 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2019-11-20 07:31:49,624 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2019-11-20 07:31:49,935 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2019-11-20 07:31:50,275 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2019-11-20 07:31:50,527 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-11-20 07:31:50,778 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2019-11-20 07:31:50,979 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2019-11-20 07:31:51,183 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2019-11-20 07:31:51,357 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2019-11-20 07:31:51,567 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2019-11-20 07:31:51,783 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2019-11-20 07:31:52,008 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-11-20 07:31:52,231 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 56 [2019-11-20 07:31:53,241 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-11-20 07:31:55,361 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 07:31:55,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203494972] [2019-11-20 07:31:55,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770903845] [2019-11-20 07:31:55,362 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:31:55,505 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 07:31:55,505 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:31:55,509 WARN L253 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 153 conjunts are in the unsatisfiable core [2019-11-20 07:31:55,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:31:55,515 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 07:31:55,515 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:55,524 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:55,527 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 07:31:55,527 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:55,534 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:55,534 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 07:31:55,534 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2019-11-20 07:31:55,616 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 07:31:55,616 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:55,625 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:55,625 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:31:55,625 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-11-20 07:31:55,816 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:55,816 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 07:31:55,817 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:55,849 INFO L567 ElimStorePlain]: treesize reduction 36, result has 57.1 percent of original size [2019-11-20 07:31:55,849 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 07:31:55,850 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2019-11-20 07:31:56,097 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:56,098 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 07:31:56,098 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:56,143 INFO L567 ElimStorePlain]: treesize reduction 72, result has 47.1 percent of original size [2019-11-20 07:31:56,144 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 07:31:56,144 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:64 [2019-11-20 07:31:56,427 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:56,427 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 07:31:56,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:56,490 INFO L567 ElimStorePlain]: treesize reduction 108, result has 42.6 percent of original size [2019-11-20 07:31:56,491 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 07:31:56,491 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:84, output treesize:80 [2019-11-20 07:31:56,846 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:56,847 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 07:31:56,847 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:56,930 INFO L567 ElimStorePlain]: treesize reduction 144, result has 40.0 percent of original size [2019-11-20 07:31:56,931 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 07:31:56,931 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:100, output treesize:96 [2019-11-20 07:31:57,417 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-20 07:31:57,417 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:57,418 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 07:31:57,418 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:57,522 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-11-20 07:31:57,523 INFO L567 ElimStorePlain]: treesize reduction 180, result has 38.4 percent of original size [2019-11-20 07:31:57,523 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 07:31:57,523 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:116, output treesize:112 [2019-11-20 07:31:58,503 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-11-20 07:31:58,504 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:31:58,504 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 07:31:58,505 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:31:58,631 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2019-11-20 07:31:58,632 INFO L567 ElimStorePlain]: treesize reduction 216, result has 37.2 percent of original size [2019-11-20 07:31:58,632 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 07:31:58,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:132, output treesize:128 [2019-11-20 07:32:08,284 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-11-20 07:32:08,285 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:32:08,285 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 07:32:08,286 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:32:08,436 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2019-11-20 07:32:08,437 INFO L567 ElimStorePlain]: treesize reduction 252, result has 36.4 percent of original size [2019-11-20 07:32:08,437 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 07:32:08,437 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:148, output treesize:144 [2019-11-20 07:32:35,482 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-11-20 07:33:51,430 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-20 07:33:51,431 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: SMTLIBException [2019-11-20 07:33:51,631 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:33:51,632 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 07:33:51,635 INFO L168 Benchmark]: Toolchain (without parser) took 456788.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 245.9 MB). Free memory was 951.4 MB in the beginning and 821.3 MB in the end (delta: 130.1 MB). Peak memory consumption was 376.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:33:51,635 INFO L168 Benchmark]: CDTParser took 0.26 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 07:33:51,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:33:51,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.30 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 07:33:51,635 INFO L168 Benchmark]: Boogie Preprocessor took 26.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:33:51,635 INFO L168 Benchmark]: RCFGBuilder took 311.89 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:33:51,640 INFO L168 Benchmark]: TraceAbstraction took 456047.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.2 MB). Free memory was 1.1 GB in the beginning and 821.3 MB in the end (delta: 283.6 MB). Peak memory consumption was 395.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:33:51,641 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 355.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.30 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 26.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 311.89 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 456047.35 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.2 MB). Free memory was 1.1 GB in the beginning and 821.3 MB in the end (delta: 283.6 MB). Peak memory consumption was 395.8 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 07:33:53,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:33:53,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:33:53,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:33:53,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:33:53,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:33:53,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:33:53,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:33:53,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:33:53,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:33:53,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:33:53,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:33:53,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:33:53,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:33:53,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:33:53,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:33:53,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:33:53,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:33:53,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:33:53,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:33:53,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:33:53,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:33:53,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:33:53,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:33:53,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:33:53,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:33:53,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:33:53,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:33:53,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:33:53,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:33:53,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:33:53,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:33:53,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:33:53,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:33:53,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:33:53,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:33:53,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:33:53,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:33:53,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:33:53,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:33:53,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:33:53,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 07:33:53,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:33:53,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:33:53,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:33:53,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:33:53,380 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:33:53,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:33:53,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:33:53,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:33:53,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:33:53,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:33:53,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:33:53,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:33:53,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 07:33:53,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 07:33:53,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:33:53,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:33:53,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:33:53,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:33:53,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:33:53,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:33:53,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:33:53,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:33:53,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:33:53,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:33:53,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:33:53,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:33:53,386 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 07:33:53,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 07:33:53,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:33:53,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 07:33:53,387 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_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:53,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:33:53,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:33:53,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:33:53,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:33:53,685 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:33:53,685 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/../../sv-benchmarks/c/array-fpi/s1lif.c [2019-11-20 07:33:53,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/2f2f5962f/8f04a0a9487a427aa6d16ab6af9201af/FLAG04c10ca3b [2019-11-20 07:33:54,134 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:33:54,135 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/sv-benchmarks/c/array-fpi/s1lif.c [2019-11-20 07:33:54,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/2f2f5962f/8f04a0a9487a427aa6d16ab6af9201af/FLAG04c10ca3b [2019-11-20 07:33:54,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/bin/uautomizer/data/2f2f5962f/8f04a0a9487a427aa6d16ab6af9201af [2019-11-20 07:33:54,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:33:54,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:33:54,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:33:54,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:33:54,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:33:54,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66604a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54, skipping insertion in model container [2019-11-20 07:33:54,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,562 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:33:54,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:33:54,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:33:54,774 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:33:54,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:33:54,818 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:33:54,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54 WrapperNode [2019-11-20 07:33:54,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:33:54,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:33:54,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:33:54,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:33:54,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:33:54,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:33:54,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:33:54,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:33:54,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... [2019-11-20 07:33:54,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:33:54,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:33:54,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:33:54,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:33:54,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:33:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:33:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:33:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 07:33:55,271 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:33:55,271 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 07:33:55,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:33:55 BoogieIcfgContainer [2019-11-20 07:33:55,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:33:55,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:33:55,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:33:55,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:33:55,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:33:54" (1/3) ... [2019-11-20 07:33:55,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48923c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:33:55, skipping insertion in model container [2019-11-20 07:33:55,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:33:54" (2/3) ... [2019-11-20 07:33:55,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48923c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:33:55, skipping insertion in model container [2019-11-20 07:33:55,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:33:55" (3/3) ... [2019-11-20 07:33:55,278 INFO L109 eAbstractionObserver]: Analyzing ICFG s1lif.c [2019-11-20 07:33:55,287 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:33:55,292 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:33:55,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:33:55,322 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:33:55,322 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:33:55,322 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:33:55,323 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:33:55,323 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:33:55,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:33:55,323 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:33:55,323 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:33:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 07:33:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:33:55,340 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:33:55,341 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:33:55,341 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:33:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:33:55,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1306593900, now seen corresponding path program 1 times [2019-11-20 07:33:55,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:33:55,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [701775174] [2019-11-20 07:33:55,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:33:55,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 07:33:55,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:33:55,468 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 07:33:55,469 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:33:55,472 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 07:33:55,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [701775174] [2019-11-20 07:33:55,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:33:55,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 07:33:55,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21739684] [2019-11-20 07:33:55,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 07:33:55,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:33:55,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:33:55,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:33:55,494 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-20 07:33:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:33:55,511 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-11-20 07:33:55,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:33:55,512 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 07:33:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:33:55,521 INFO L225 Difference]: With dead ends: 35 [2019-11-20 07:33:55,521 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 07:33:55,524 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 07:33:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 07:33:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 07:33:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:33:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 07:33:55,556 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-20 07:33:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:33:55,556 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 07:33:55,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 07:33:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-20 07:33:55,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 07:33:55,557 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:33:55,558 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:33:55,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:33:55,760 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:33:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:33:55,760 INFO L82 PathProgramCache]: Analyzing trace with hash -875432925, now seen corresponding path program 1 times [2019-11-20 07:33:55,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:33:55,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1511824765] [2019-11-20 07:33:55,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:33:55,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:33:55,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:33:55,871 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 07:33:55,872 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:33:55,898 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 07:33:55,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1511824765] [2019-11-20 07:33:55,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:33:55,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-20 07:33:55,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649539652] [2019-11-20 07:33:55,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:33:55,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:33:55,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:33:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:33:55,901 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-11-20 07:33:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:33:55,988 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-20 07:33:55,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:33:55,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 07:33:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:33:55,991 INFO L225 Difference]: With dead ends: 29 [2019-11-20 07:33:55,991 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 07:33:55,992 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 07:33:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 07:33:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 07:33:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 07:33:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 07:33:55,996 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2019-11-20 07:33:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:33:55,996 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 07:33:55,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:33:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 07:33:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 07:33:55,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:33:55,997 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:33:56,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:33:56,198 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:33:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:33:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash -100050171, now seen corresponding path program 1 times [2019-11-20 07:33:56,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:33:56,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1153625320] [2019-11-20 07:33:56,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:33:56,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:33:56,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:33:56,360 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 07:33:56,360 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:33:56,463 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 07:33:56,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1153625320] [2019-11-20 07:33:56,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:33:56,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 07:33:56,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883592107] [2019-11-20 07:33:56,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 07:33:56,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:33:56,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 07:33:56,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-20 07:33:56,466 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 10 states. [2019-11-20 07:33:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:33:56,827 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2019-11-20 07:33:56,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 07:33:56,828 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-11-20 07:33:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:33:56,829 INFO L225 Difference]: With dead ends: 53 [2019-11-20 07:33:56,829 INFO L226 Difference]: Without dead ends: 43 [2019-11-20 07:33:56,830 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-11-20 07:33:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-20 07:33:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2019-11-20 07:33:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 07:33:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2019-11-20 07:33:56,846 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 13 [2019-11-20 07:33:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:33:56,848 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2019-11-20 07:33:56,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 07:33:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2019-11-20 07:33:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 07:33:56,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:33:56,851 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 07:33:57,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:33:57,061 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:33:57,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:33:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1777901324, now seen corresponding path program 1 times [2019-11-20 07:33:57,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:33:57,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1383613449] [2019-11-20 07:33:57,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:33:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:33:57,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 07:33:57,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:33:57,245 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 07:33:57,246 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,275 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:33:57,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:33:57,285 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 07:33:57,288 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 07:33:57,288 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,308 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:33:57,308 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 07:33:57,309 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:34 [2019-11-20 07:33:57,335 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:33:57,337 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 07:33:57,338 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,378 INFO L567 ElimStorePlain]: treesize reduction 4, result has 89.5 percent of original size [2019-11-20 07:33:57,378 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,379 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:34 [2019-11-20 07:33:57,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:33:57,514 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:33:57,514 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 07:33:57,516 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,598 INFO L567 ElimStorePlain]: treesize reduction 26, result has 56.7 percent of original size [2019-11-20 07:33:57,598 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:33:57,599 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:34 [2019-11-20 07:33:57,682 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 07:33:57,683 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:33:58,482 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 07:33:58,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1383613449] [2019-11-20 07:33:58,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:33:58,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2019-11-20 07:33:58,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705848984] [2019-11-20 07:33:58,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 07:33:58,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:33:58,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 07:33:58,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:33:58,484 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 6 states. [2019-11-20 07:33:59,219 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 07:34:00,736 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-11-20 07:34:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:34:02,827 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2019-11-20 07:34:02,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:34:02,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-20 07:34:02,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:34:02,830 INFO L225 Difference]: With dead ends: 53 [2019-11-20 07:34:02,830 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 07:34:02,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2019-11-20 07:34:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 07:34:02,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2019-11-20 07:34:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 07:34:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-11-20 07:34:02,842 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 18 [2019-11-20 07:34:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:34:02,842 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-11-20 07:34:02,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 07:34:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2019-11-20 07:34:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 07:34:02,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:34:02,843 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 07:34:03,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:34:03,044 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:34:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:34:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1384874314, now seen corresponding path program 1 times [2019-11-20 07:34:03,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:34:03,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1057858164] [2019-11-20 07:34:03,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:34:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:34:03,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:34:03,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:34:03,133 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 07:34:03,134 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:03,139 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:03,139 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:03,139 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-11-20 07:34:03,164 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 07:34:03,165 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:03,172 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:03,172 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 07:34:03,172 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2019-11-20 07:34:03,180 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 07:34:03,181 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:34:03,213 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 07:34:03,216 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 07:34:03,217 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:03,219 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:03,219 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:03,221 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:03,222 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 07:34:03,222 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2019-11-20 07:34:03,237 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 07:34:03,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1057858164] [2019-11-20 07:34:03,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:34:03,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-11-20 07:34:03,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289079136] [2019-11-20 07:34:03,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:34:03,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:34:03,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:34:03,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:34:03,240 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 9 states. [2019-11-20 07:34:03,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:34:03,389 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-11-20 07:34:03,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:34:03,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-20 07:34:03,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:34:03,390 INFO L225 Difference]: With dead ends: 49 [2019-11-20 07:34:03,390 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 07:34:03,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-20 07:34:03,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 07:34:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-20 07:34:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 07:34:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-11-20 07:34:03,396 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 18 [2019-11-20 07:34:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:34:03,396 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-11-20 07:34:03,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:34:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-11-20 07:34:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 07:34:03,397 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:34:03,397 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 07:34:03,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:34:03,598 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:34:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:34:03,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2122286649, now seen corresponding path program 1 times [2019-11-20 07:34:03,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:34:03,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1821284867] [2019-11-20 07:34:03,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:34:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:34:03,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 07:34:03,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:34:03,799 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 07:34:03,800 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:34:03,989 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 07:34:03,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1821284867] [2019-11-20 07:34:03,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:34:03,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-20 07:34:03,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681705201] [2019-11-20 07:34:03,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 07:34:03,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:34:03,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 07:34:03,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-11-20 07:34:03,992 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 16 states. [2019-11-20 07:34:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:34:04,482 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2019-11-20 07:34:04,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 07:34:04,482 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2019-11-20 07:34:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:34:04,483 INFO L225 Difference]: With dead ends: 78 [2019-11-20 07:34:04,483 INFO L226 Difference]: Without dead ends: 62 [2019-11-20 07:34:04,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2019-11-20 07:34:04,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-20 07:34:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2019-11-20 07:34:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-20 07:34:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-11-20 07:34:04,493 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 23 [2019-11-20 07:34:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:34:04,494 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-11-20 07:34:04,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 07:34:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-11-20 07:34:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 07:34:04,495 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:34:04,495 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 07:34:04,701 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:34:04,701 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:34:04,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:34:04,701 INFO L82 PathProgramCache]: Analyzing trace with hash 645229449, now seen corresponding path program 2 times [2019-11-20 07:34:04,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:34:04,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1871915485] [2019-11-20 07:34:04,702 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:34:04,841 ERROR L271 FreeRefinementEngine]: Caught known exception: Array theory solver does not yet support write-chains connecting two different constant arrays [2019-11-20 07:34:04,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333350681] [2019-11-20 07:34:04,841 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:34:04,924 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:34:04,924 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:34:04,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 07:34:04,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:34:05,071 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 07:34:05,071 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,084 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,085 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,085 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-11-20 07:34:05,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:05,159 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,159 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 07:34:05,160 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,175 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,175 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,175 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:18 [2019-11-20 07:34:05,215 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 07:34:05,216 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,218 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,218 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 07:34:05,219 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2019-11-20 07:34:05,237 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 07:34:05,237 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:34:05,394 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 07:34:05,401 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 07:34:05,402 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,404 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,404 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:05,406 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:05,407 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 07:34:05,407 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:9 [2019-11-20 07:34:05,441 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 07:34:05,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1871915485] [2019-11-20 07:34:05,441 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 07:34:05,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333350681] [2019-11-20 07:34:05,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:34:05,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-11-20 07:34:05,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404721508] [2019-11-20 07:34:05,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 07:34:05,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:34:05,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 07:34:05,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-11-20 07:34:05,443 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 13 states. [2019-11-20 07:34:05,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:34:05,797 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2019-11-20 07:34:05,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 07:34:05,798 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2019-11-20 07:34:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:34:05,799 INFO L225 Difference]: With dead ends: 63 [2019-11-20 07:34:05,799 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 07:34:05,799 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-11-20 07:34:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 07:34:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-11-20 07:34:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 07:34:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-11-20 07:34:05,809 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 25 [2019-11-20 07:34:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:34:05,810 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-11-20 07:34:05,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 07:34:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-11-20 07:34:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 07:34:05,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:34:05,812 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 07:34:06,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:34:06,018 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:34:06,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:34:06,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1363538264, now seen corresponding path program 3 times [2019-11-20 07:34:06,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:34:06,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [743545925] [2019-11-20 07:34:06,019 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_349d6737-0ce9-453b-b1f0-69c06fab83c8/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 07:34:06,151 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-20 07:34:06,152 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:34:06,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 07:34:06,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:34:06,166 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 07:34:06,166 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:06,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:06,184 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:06,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-11-20 07:34:06,231 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 07:34:06,232 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:06,259 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:06,259 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:06,260 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:33 [2019-11-20 07:34:06,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,610 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:06,610 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 07:34:06,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:06,721 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2019-11-20 07:34:06,722 INFO L567 ElimStorePlain]: treesize reduction 67, result has 52.5 percent of original size [2019-11-20 07:34:06,722 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 07:34:06,722 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:115, output treesize:74 [2019-11-20 07:34:06,942 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,944 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,955 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:06,955 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 07:34:06,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:34:06,976 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,979 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,981 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:06,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 07:34:07,004 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:07,004 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 07:34:07,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:34:07,020 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 07:34:07,024 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:07,024 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:34:07,092 INFO L567 ElimStorePlain]: treesize reduction 4, result has 89.2 percent of original size [2019-11-20 07:34:07,093 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 07:34:07,093 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:123, output treesize:29 [2019-11-20 07:34:07,213 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 07:34:07,213 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:34:16,102 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-20 07:34:16,561 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-20 07:34:17,732 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-20 07:34:18,695 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-20 07:34:19,012 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-11-20 07:34:19,012 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:34:19,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:34:19,214 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 07:34:19,218 INFO L168 Benchmark]: Toolchain (without parser) took 24667.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 955.1 MB in the beginning and 938.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 224.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:34:19,218 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:34:19,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.32 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:34:19,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -201.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:34:19,219 INFO L168 Benchmark]: Boogie Preprocessor took 30.00 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 07:34:19,219 INFO L168 Benchmark]: RCFGBuilder took 320.02 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:34:19,221 INFO L168 Benchmark]: TraceAbstraction took 23943.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 938.9 MB in the end (delta: 187.5 MB). Peak memory consumption was 240.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:34:19,223 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.32 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 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 101.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -201.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.00 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 320.02 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23943.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 938.9 MB in the end (delta: 187.5 MB). Peak memory consumption was 240.4 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...