./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/invert_string-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/invert_string-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca98535e808a51f7cfa7d21c9d33f259821212a6554e27f29c2bddd9197c0249 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:37:09,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:37:09,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:37:09,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:37:09,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:37:09,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:37:09,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:37:09,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:37:09,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:37:09,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:37:09,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:37:09,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:37:09,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:37:09,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:37:09,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:37:09,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:37:09,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:37:09,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:37:09,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:37:09,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:37:09,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:37:09,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:37:09,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:37:09,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:37:09,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:37:09,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:37:09,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:37:09,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:37:09,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:37:09,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:37:09,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:37:09,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:37:09,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:37:09,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:37:09,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:37:09,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:37:09,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:37:09,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:37:09,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:37:09,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:37:09,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:37:09,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:37:09,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:37:09,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:37:09,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:37:09,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:37:09,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:37:09,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:37:09,980 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:37:09,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:37:09,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:37:09,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:37:09,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:37:09,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:37:09,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:37:09,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:37:09,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:37:09,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:37:09,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:37:09,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:37:09,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:37:09,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:37:09,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:37:09,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:37:09,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:37:09,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:37:09,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:37:09,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:37:09,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:37:09,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:37:09,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:37:09,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:37:09,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:37:09,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:37:09,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca98535e808a51f7cfa7d21c9d33f259821212a6554e27f29c2bddd9197c0249 [2021-11-23 13:37:10,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:37:10,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:37:10,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:37:10,314 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:37:10,315 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:37:10,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/loops/invert_string-3.c [2021-11-23 13:37:10,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/data/7256f5e7c/1b4e1b7fe4be461aba493c2130ed8028/FLAGafad17927 [2021-11-23 13:37:10,802 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:37:10,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/sv-benchmarks/c/loops/invert_string-3.c [2021-11-23 13:37:10,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/data/7256f5e7c/1b4e1b7fe4be461aba493c2130ed8028/FLAGafad17927 [2021-11-23 13:37:11,184 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/data/7256f5e7c/1b4e1b7fe4be461aba493c2130ed8028 [2021-11-23 13:37:11,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:37:11,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:37:11,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:37:11,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:37:11,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:37:11,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65284d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11, skipping insertion in model container [2021-11-23 13:37:11,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:37:11,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:37:11,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/sv-benchmarks/c/loops/invert_string-3.c[327,340] [2021-11-23 13:37:11,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:37:11,437 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:37:11,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/sv-benchmarks/c/loops/invert_string-3.c[327,340] [2021-11-23 13:37:11,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:37:11,470 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:37:11,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11 WrapperNode [2021-11-23 13:37:11,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:37:11,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:37:11,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:37:11,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:37:11,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,538 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2021-11-23 13:37:11,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:37:11,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:37:11,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:37:11,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:37:11,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:37:11,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:37:11,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:37:11,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:37:11,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (1/1) ... [2021-11-23 13:37:11,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:37:11,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:11,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:37:11,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:37:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:37:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:37:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:37:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:37:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:37:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:37:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:37:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:37:11,768 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:37:11,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:37:12,007 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:37:12,015 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:37:12,015 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 13:37:12,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:12 BoogieIcfgContainer [2021-11-23 13:37:12,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:37:12,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:37:12,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:37:12,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:37:12,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:37:11" (1/3) ... [2021-11-23 13:37:12,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69eb8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:37:12, skipping insertion in model container [2021-11-23 13:37:12,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:11" (2/3) ... [2021-11-23 13:37:12,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69eb8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:37:12, skipping insertion in model container [2021-11-23 13:37:12,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:12" (3/3) ... [2021-11-23 13:37:12,028 INFO L111 eAbstractionObserver]: Analyzing ICFG invert_string-3.c [2021-11-23 13:37:12,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:37:12,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:37:12,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:37:12,108 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:37:12,109 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:37:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:37:12,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:12,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:12,133 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:12,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2016449835, now seen corresponding path program 1 times [2021-11-23 13:37:12,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220586069] [2021-11-23 13:37:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:12,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:37:12,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:12,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220586069] [2021-11-23 13:37:12,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220586069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:12,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:12,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:37:12,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053838217] [2021-11-23 13:37:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:12,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:37:12,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:37:12,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:37:12,723 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:12,806 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-11-23 13:37:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:37:12,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 13:37:12,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:12,818 INFO L225 Difference]: With dead ends: 34 [2021-11-23 13:37:12,818 INFO L226 Difference]: Without dead ends: 16 [2021-11-23 13:37:12,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:37:12,826 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:12,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:37:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-23 13:37:12,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-11-23 13:37:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-23 13:37:12,870 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2021-11-23 13:37:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:12,870 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-23 13:37:12,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-23 13:37:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:37:12,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:12,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:12,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:37:12,874 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash 867342291, now seen corresponding path program 1 times [2021-11-23 13:37:12,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:12,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846015202] [2021-11-23 13:37:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:12,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:37:13,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:13,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846015202] [2021-11-23 13:37:13,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846015202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:37:13,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:37:13,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:37:13,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370105377] [2021-11-23 13:37:13,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:37:13,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:37:13,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:37:13,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:37:13,091 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:13,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:13,128 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-11-23 13:37:13,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:37:13,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 13:37:13,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:13,130 INFO L225 Difference]: With dead ends: 28 [2021-11-23 13:37:13,130 INFO L226 Difference]: Without dead ends: 17 [2021-11-23 13:37:13,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:37:13,132 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:13,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:37:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-23 13:37:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-23 13:37:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-23 13:37:13,138 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2021-11-23 13:37:13,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:13,138 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-23 13:37:13,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-23 13:37:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:37:13,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:13,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:13,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:37:13,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:13,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:13,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2031054225, now seen corresponding path program 1 times [2021-11-23 13:37:13,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:13,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594915120] [2021-11-23 13:37:13,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:13,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:37:13,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594915120] [2021-11-23 13:37:13,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594915120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:37:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703265312] [2021-11-23 13:37:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:13,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:13,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:13,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:37:13,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:37:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:13,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 13:37:13,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:13,483 INFO L388 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 [2021-11-23 13:37:13,622 INFO L388 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 17 treesize of output 13 [2021-11-23 13:37:13,638 INFO L388 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 18 treesize of output 14 [2021-11-23 13:37:13,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:13,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:13,808 INFO L388 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2021-11-23 13:37:14,254 INFO L354 Elim1Store]: treesize reduction 72, result has 8.9 percent of original size [2021-11-23 13:37:14,256 INFO L388 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 88 treesize of output 56 [2021-11-23 13:37:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:37:14,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:14,744 INFO L354 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2021-11-23 13:37:14,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 1 [2021-11-23 13:37:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:37:14,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703265312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:37:14,753 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:37:14,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 17 [2021-11-23 13:37:14,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924426496] [2021-11-23 13:37:14,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:37:14,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:37:14,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:14,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:37:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:37:14,761 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 17 states, 17 states have (on average 2.0) internal successors, (34), 17 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:15,721 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2021-11-23 13:37:15,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 13:37:15,726 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 17 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 13:37:15,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:15,727 INFO L225 Difference]: With dead ends: 50 [2021-11-23 13:37:15,727 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 13:37:15,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=607, Unknown=0, NotChecked=0, Total=812 [2021-11-23 13:37:15,729 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 52 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:15,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 70 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:37:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 13:37:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 23. [2021-11-23 13:37:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-23 13:37:15,739 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2021-11-23 13:37:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:15,739 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-23 13:37:15,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 17 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:15,740 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-23 13:37:15,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 13:37:15,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:15,741 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:15,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 13:37:15,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:15,970 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:15,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:15,970 INFO L85 PathProgramCache]: Analyzing trace with hash -799235507, now seen corresponding path program 2 times [2021-11-23 13:37:15,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:15,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601005715] [2021-11-23 13:37:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:15,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 13:37:16,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:16,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601005715] [2021-11-23 13:37:16,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601005715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:37:16,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478804409] [2021-11-23 13:37:16,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:37:16,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:16,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:16,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:37:16,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:37:16,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:37:16,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:37:16,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 13:37:16,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:16,272 INFO L388 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 [2021-11-23 13:37:16,598 INFO L388 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 19 treesize of output 19 [2021-11-23 13:37:16,919 INFO L354 Elim1Store]: treesize reduction 79, result has 8.1 percent of original size [2021-11-23 13:37:16,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 109 treesize of output 73 [2021-11-23 13:37:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 13:37:16,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:17,236 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:17,236 INFO L388 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 82 treesize of output 78 [2021-11-23 13:37:17,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:17,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2021-11-23 13:37:17,266 INFO L388 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 39 treesize of output 30 [2021-11-23 13:37:17,295 INFO L354 Elim1Store]: treesize reduction 27, result has 37.2 percent of original size [2021-11-23 13:37:17,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 101 [2021-11-23 13:37:17,367 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:17,368 INFO L388 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 80 treesize of output 76 [2021-11-23 13:37:17,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:17,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2021-11-23 13:37:17,398 INFO L388 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 36 treesize of output 28 [2021-11-23 13:37:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:17,422 INFO L354 Elim1Store]: treesize reduction 5, result has 68.8 percent of original size [2021-11-23 13:37:17,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 89 [2021-11-23 13:37:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 13:37:18,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478804409] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:37:18,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:37:18,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 10] total 23 [2021-11-23 13:37:18,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222619870] [2021-11-23 13:37:18,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:37:18,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-23 13:37:18,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:18,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-23 13:37:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2021-11-23 13:37:18,033 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 23 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:20,400 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2021-11-23 13:37:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 13:37:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 23 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 13:37:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:20,402 INFO L225 Difference]: With dead ends: 54 [2021-11-23 13:37:20,402 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 13:37:20,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=354, Invalid=1368, Unknown=0, NotChecked=0, Total=1722 [2021-11-23 13:37:20,404 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 99 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:20,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 75 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:37:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 13:37:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2021-11-23 13:37:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:20,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-11-23 13:37:20,414 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2021-11-23 13:37:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:20,415 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-23 13:37:20,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 23 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:20,415 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-11-23 13:37:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:37:20,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:20,416 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:20,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:20,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:20,642 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:20,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1667973471, now seen corresponding path program 1 times [2021-11-23 13:37:20,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:20,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910879733] [2021-11-23 13:37:20,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:20,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 13:37:20,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:20,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910879733] [2021-11-23 13:37:20,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910879733] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:37:20,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911460130] [2021-11-23 13:37:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:20,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:20,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:20,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:37:20,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:37:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:20,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 13:37:20,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:20,910 INFO L388 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 [2021-11-23 13:37:21,195 INFO L388 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 20 treesize of output 20 [2021-11-23 13:37:21,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:21,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:21,382 INFO L388 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 0 case distinctions, treesize of input 36 treesize of output 41 [2021-11-23 13:37:22,053 INFO L354 Elim1Store]: treesize reduction 206, result has 3.3 percent of original size [2021-11-23 13:37:22,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 126 treesize of output 76 [2021-11-23 13:37:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 13:37:22,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:22,662 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:22,663 INFO L388 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 1112 treesize of output 992 [2021-11-23 13:37:22,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:22,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:22,730 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:22,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1178 treesize of output 898 [2021-11-23 13:37:23,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:23,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:23,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:23,338 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:23,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:23,542 INFO L354 Elim1Store]: treesize reduction 12, result has 66.7 percent of original size [2021-11-23 13:37:23,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 583 [2021-11-23 13:37:23,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:23,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:23,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:23,713 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:23,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:23,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:23,773 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:23,795 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:23,812 INFO L354 Elim1Store]: treesize reduction 12, result has 66.7 percent of original size [2021-11-23 13:37:23,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 899 [2021-11-23 13:37:24,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,269 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1910 treesize of output 1 [2021-11-23 13:37:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,316 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,354 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:24,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,434 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,441 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,463 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:24,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,514 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,549 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:24,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 321 [2021-11-23 13:37:24,597 INFO L388 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 819 treesize of output 747 [2021-11-23 13:37:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,643 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 321 [2021-11-23 13:37:24,652 INFO L388 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 819 treesize of output 747 [2021-11-23 13:37:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,776 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:24,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,817 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,858 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:24,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,883 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:24,932 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:24,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,970 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:24,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:24,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:24,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:24,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 321 [2021-11-23 13:37:25,006 INFO L388 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 819 treesize of output 747 [2021-11-23 13:37:25,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,080 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:25,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:25,102 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:25,147 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:25,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,190 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:25,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:25,211 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:25,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,292 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2853 treesize of output 1 [2021-11-23 13:37:25,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:25,455 INFO L388 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 547 treesize of output 502 [2021-11-23 13:37:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,692 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 710 treesize of output 1 [2021-11-23 13:37:25,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:25,711 INFO L388 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 547 treesize of output 502 [2021-11-23 13:37:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,829 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:25,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:25,851 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:25,880 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:25,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,972 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:25,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 710 treesize of output 1 [2021-11-23 13:37:25,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:25,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:25,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:25,998 INFO L388 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 547 treesize of output 502 [2021-11-23 13:37:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:26,458 INFO L388 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 547 treesize of output 502 [2021-11-23 13:37:26,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:26,615 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:26,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,641 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:26,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:26,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:26,673 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,729 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:26,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1101 treesize of output 1 [2021-11-23 13:37:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:26,746 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,909 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:26,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 710 treesize of output 1 [2021-11-23 13:37:26,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:26,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:26,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:26,933 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:27,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:27,078 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,141 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:27,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:27,164 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:27,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:27,220 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,249 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:27,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:27,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:27,278 INFO L388 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 1214 treesize of output 1115 [2021-11-23 13:37:27,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:27,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:27,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:27,616 INFO L388 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 752 treesize of output 689 [2021-11-23 13:37:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:28,131 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:28,213 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:28,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,253 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:28,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:28,278 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:28,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,395 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:28,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1101 treesize of output 1 [2021-11-23 13:37:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,403 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:28,412 INFO L388 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 547 treesize of output 502 [2021-11-23 13:37:28,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,924 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:28,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 710 treesize of output 1 [2021-11-23 13:37:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:28,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:28,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:28,940 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:29,080 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:29,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:29,171 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:29,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,200 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:29,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:29,217 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:29,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,260 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1101 treesize of output 1 [2021-11-23 13:37:29,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:29,275 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:29,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,362 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 710 treesize of output 1 [2021-11-23 13:37:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:29,395 INFO L388 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 316 treesize of output 289 [2021-11-23 13:37:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:29,472 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:29,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,518 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:29,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,530 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:29,540 INFO L388 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 614 treesize of output 560 [2021-11-23 13:37:29,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:29,586 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:29,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,618 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:29,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,640 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:29,651 INFO L388 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 752 treesize of output 689 [2021-11-23 13:37:29,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,890 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:29,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1920 treesize of output 1 [2021-11-23 13:37:29,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:29,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:29,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:29,912 INFO L388 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 1214 treesize of output 1115 [2021-11-23 13:37:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,019 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,069 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,076 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:39,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,099 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,168 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,228 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:39,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:39,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,304 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,310 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:39,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1910 treesize of output 1 [2021-11-23 13:37:39,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,369 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,402 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,408 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:39,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 781 treesize of output 1 [2021-11-23 13:37:39,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,429 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,461 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:39,470 INFO L388 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 383 treesize of output 347 [2021-11-23 13:37:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,523 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:39,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 321 [2021-11-23 13:37:39,551 INFO L388 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 1281 treesize of output 1173 [2021-11-23 13:37:39,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:39,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:39,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:39,589 INFO L388 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 752 treesize of output 689 [2021-11-23 13:37:40,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:40,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:40,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 298 [2021-11-23 13:37:40,223 INFO L388 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 1214 treesize of output 1115 [2021-11-23 13:37:41,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 313 [2021-11-23 13:37:41,036 INFO L388 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 768 treesize of output 705 [2021-11-23 13:37:41,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,317 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:41,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1936 treesize of output 1 [2021-11-23 13:37:41,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 74 [2021-11-23 13:37:41,379 INFO L388 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 201 treesize of output 183 [2021-11-23 13:37:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 74 [2021-11-23 13:37:41,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,452 INFO L354 Elim1Store]: treesize reduction 7, result has 80.6 percent of original size [2021-11-23 13:37:41,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 467 treesize of output 333 [2021-11-23 13:37:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 135 [2021-11-23 13:37:41,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,705 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:41,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1 [2021-11-23 13:37:41,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,720 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-23 13:37:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 127 [2021-11-23 13:37:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,801 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:41,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1101 treesize of output 1 [2021-11-23 13:37:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2021-11-23 13:37:41,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,828 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-23 13:37:41,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:41,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:41,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 275 [2021-11-23 13:37:41,877 INFO L388 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 1014 treesize of output 933 [2021-11-23 13:37:42,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,020 INFO L354 Elim1Store]: treesize reduction 7, result has 80.6 percent of original size [2021-11-23 13:37:42,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 873 treesize of output 664 [2021-11-23 13:37:42,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 74 [2021-11-23 13:37:42,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 74 [2021-11-23 13:37:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,838 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:42,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1178 treesize of output 1 [2021-11-23 13:37:42,891 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:42,891 INFO L388 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 1112 treesize of output 992 [2021-11-23 13:37:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:42,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:42,959 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:42,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1178 treesize of output 898 [2021-11-23 13:37:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:43,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:43,248 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:43,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1178 treesize of output 1 [2021-11-23 13:37:43,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:43,306 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-11-23 13:37:43,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 377 treesize of output 319 [2021-11-23 13:37:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:43,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:43,606 INFO L354 Elim1Store]: treesize reduction 6, result has 83.3 percent of original size [2021-11-23 13:37:43,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2976 treesize of output 2371 [2021-11-23 13:37:44,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-23 13:37:44,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,313 INFO L388 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 39 treesize of output 30 [2021-11-23 13:37:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-23 13:37:44,369 INFO L388 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 105 treesize of output 96 [2021-11-23 13:37:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,467 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:44,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3110 treesize of output 1 [2021-11-23 13:37:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 47 [2021-11-23 13:37:44,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:37:44,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:37:44,519 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-23 13:37:44,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2798 treesize of output 1 [2021-11-23 13:37:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 13:37:44,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911460130] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:37:44,938 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:37:44,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 14] total 32 [2021-11-23 13:37:44,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056419178] [2021-11-23 13:37:44,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:37:44,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-23 13:37:44,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-23 13:37:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2021-11-23 13:37:44,942 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:48,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:48,157 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2021-11-23 13:37:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 13:37:48,158 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 13:37:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:48,158 INFO L225 Difference]: With dead ends: 65 [2021-11-23 13:37:48,159 INFO L226 Difference]: Without dead ends: 56 [2021-11-23 13:37:48,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=489, Invalid=2591, Unknown=0, NotChecked=0, Total=3080 [2021-11-23 13:37:48,162 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 130 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:48,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 89 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:37:48,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-23 13:37:48,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 38. [2021-11-23 13:37:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:48,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-11-23 13:37:48,176 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 23 [2021-11-23 13:37:48,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:48,176 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-11-23 13:37:48,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:48,177 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-11-23 13:37:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:37:48,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:48,178 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:48,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:48,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:48,393 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash 492484807, now seen corresponding path program 3 times [2021-11-23 13:37:48,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836704270] [2021-11-23 13:37:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:48,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:37:48,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:48,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836704270] [2021-11-23 13:37:48,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836704270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:37:48,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210683810] [2021-11-23 13:37:48,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 13:37:48,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:48,552 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:37:48,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:37:48,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 13:37:48,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:37:48,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:37:48,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:37:48,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:37:48,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210683810] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:37:48,903 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:37:48,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 12 [2021-11-23 13:37:48,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5124567] [2021-11-23 13:37:48,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:37:48,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:37:48,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:48,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:37:48,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:37:48,906 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:37:49,041 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2021-11-23 13:37:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:37:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 13:37:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:37:49,043 INFO L225 Difference]: With dead ends: 75 [2021-11-23 13:37:49,043 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 13:37:49,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:37:49,044 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:37:49,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:37:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 13:37:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-23 13:37:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:49,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-11-23 13:37:49,058 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 23 [2021-11-23 13:37:49,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:37:49,059 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-11-23 13:37:49,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:37:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-23 13:37:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:37:49,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:37:49,061 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:37:49,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:37:49,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:49,276 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:37:49,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:37:49,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2015456385, now seen corresponding path program 4 times [2021-11-23 13:37:49,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:37:49,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932288336] [2021-11-23 13:37:49,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:37:49,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:37:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:37:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 13:37:50,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:37:50,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932288336] [2021-11-23 13:37:50,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932288336] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:37:50,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062244347] [2021-11-23 13:37:50,115 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 13:37:50,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:37:50,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:37:50,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:37:50,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:37:50,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 13:37:50,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:37:50,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 13:37:50,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:37:50,182 INFO L388 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 [2021-11-23 13:37:50,894 INFO L388 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 19 treesize of output 19 [2021-11-23 13:37:51,221 INFO L354 Elim1Store]: treesize reduction 100, result has 6.5 percent of original size [2021-11-23 13:37:51,222 INFO L388 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 113 treesize of output 73 [2021-11-23 13:37:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:37:51,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:37:51,547 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:51,548 INFO L388 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 82 treesize of output 78 [2021-11-23 13:37:51,623 INFO L354 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2021-11-23 13:37:51,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 13:37:51,627 INFO L388 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 39 treesize of output 30 [2021-11-23 13:37:51,648 INFO L354 Elim1Store]: treesize reduction 27, result has 37.2 percent of original size [2021-11-23 13:37:51,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 49 [2021-11-23 13:37:51,670 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:37:51,671 INFO L388 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 80 treesize of output 76 [2021-11-23 13:37:51,746 INFO L354 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2021-11-23 13:37:51,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 13:37:51,751 INFO L388 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 36 treesize of output 28 [2021-11-23 13:37:51,771 INFO L354 Elim1Store]: treesize reduction 27, result has 34.1 percent of original size [2021-11-23 13:37:51,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 45 [2021-11-23 13:37:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:37:52,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062244347] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:37:52,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:37:52,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 16] total 46 [2021-11-23 13:37:52,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880105044] [2021-11-23 13:37:52,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:37:52,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-23 13:37:52,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:37:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-23 13:37:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1775, Unknown=0, NotChecked=0, Total=2070 [2021-11-23 13:37:52,414 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 46 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:38:03,057 INFO L93 Difference]: Finished difference Result 166 states and 175 transitions. [2021-11-23 13:38:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-23 13:38:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 13:38:03,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:38:03,061 INFO L225 Difference]: With dead ends: 166 [2021-11-23 13:38:03,061 INFO L226 Difference]: Without dead ends: 164 [2021-11-23 13:38:03,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3982 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2422, Invalid=12830, Unknown=0, NotChecked=0, Total=15252 [2021-11-23 13:38:03,072 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 472 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:38:03,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 467 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 13:38:03,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-23 13:38:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 41. [2021-11-23 13:38:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-11-23 13:38:03,108 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 29 [2021-11-23 13:38:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:38:03,110 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-23 13:38:03,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:38:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-11-23 13:38:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 13:38:03,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:38:03,111 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:38:03,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:38:03,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 13:38:03,322 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:38:03,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:38:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1871551151, now seen corresponding path program 2 times [2021-11-23 13:38:03,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:38:03,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380530288] [2021-11-23 13:38:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:38:03,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:38:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:38:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-23 13:38:03,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:38:03,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380530288] [2021-11-23 13:38:03,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380530288] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:38:03,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550175754] [2021-11-23 13:38:03,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:38:03,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:38:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:38:03,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:38:03,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a58174b-04ab-46a3-803e-e04b8781d033/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:38:03,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 13:38:03,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 13:38:03,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 13:38:03,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:38:03,653 INFO L388 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 [2021-11-23 13:38:03,945 INFO L388 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 19 treesize of output 19 [2021-11-23 13:38:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,075 INFO L388 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 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 13:38:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:04,239 INFO L388 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 52 treesize of output 63 [2021-11-23 13:38:05,199 INFO L354 Elim1Store]: treesize reduction 370, result has 1.9 percent of original size [2021-11-23 13:38:05,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 141 treesize of output 79 [2021-11-23 13:38:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 13:38:05,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:38:06,258 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:38:06,259 INFO L388 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 13482 treesize of output 11890 [2021-11-23 13:38:06,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:38:06,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:38:06,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:38:06,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 13:38:06,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 6950 treesize of output 5246 [2021-11-23 13:38:06,545 INFO L388 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 101198 treesize of output 97022