./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array6_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array6_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF --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 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:31:50,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:31:50,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:31:50,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:31:50,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:31:50,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:31:50,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:31:50,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:31:50,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:31:50,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:31:50,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:31:50,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:31:50,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:31:50,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:31:50,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:31:50,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:31:50,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:31:50,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:31:50,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:31:50,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:31:50,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:31:50,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:31:50,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:31:50,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:31:50,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:31:50,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:31:50,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:31:50,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:31:50,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:31:50,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:31:50,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:31:50,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:31:50,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:31:50,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:31:50,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:31:50,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:31:50,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:31:50,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:31:50,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:31:50,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:31:50,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:31:50,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:31:50,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:31:50,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:31:50,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:31:50,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:31:50,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:31:50,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:31:50,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:31:50,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:31:50,416 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:31:50,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:31:50,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:31:50,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:31:50,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:31:50,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:31:50,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:31:50,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:31:50,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:31:50,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:31:50,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:31:50,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:31:50,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:31:50,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:31:50,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:31:50,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:31:50,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:31:50,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:31:50,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:31:50,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:31:50,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:31:50,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:31:50,422 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:31:50,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:31:50,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:31:50,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:31:50,423 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_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 [2021-11-20 05:31:50,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:31:50,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:31:50,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:31:50,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:31:50,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:31:50,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/array-patterns/array6_pattern.c [2021-11-20 05:31:50,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/data/4550cfb9c/f8fea2b17cb34784b1573afd4de32b88/FLAG9047ea6a1 [2021-11-20 05:31:51,419 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:31:51,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/sv-benchmarks/c/array-patterns/array6_pattern.c [2021-11-20 05:31:51,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/data/4550cfb9c/f8fea2b17cb34784b1573afd4de32b88/FLAG9047ea6a1 [2021-11-20 05:31:51,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/data/4550cfb9c/f8fea2b17cb34784b1573afd4de32b88 [2021-11-20 05:31:51,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:31:51,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:31:51,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:31:51,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:31:51,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:31:51,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:51" (1/1) ... [2021-11-20 05:31:51,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424a4759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:51, skipping insertion in model container [2021-11-20 05:31:51,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:51" (1/1) ... [2021-11-20 05:31:51,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:31:51,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:31:52,017 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_d7f6f7cf-aefd-4289-a707-4f081857bd30/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2021-11-20 05:31:52,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:31:52,046 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:31:52,059 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_d7f6f7cf-aefd-4289-a707-4f081857bd30/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2021-11-20 05:31:52,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:31:52,083 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:31:52,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52 WrapperNode [2021-11-20 05:31:52,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:31:52,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:31:52,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:31:52,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:31:52,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,123 INFO L137 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2021-11-20 05:31:52,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:31:52,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:31:52,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:31:52,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:31:52,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:31:52,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:31:52,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:31:52,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:31:52,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (1/1) ... [2021-11-20 05:31:52,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:31:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:52,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:31:52,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:31:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:31:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 05:31:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 05:31:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:31:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:31:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:31:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:31:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:31:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:31:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:31:52,306 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:31:52,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:31:52,470 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:31:52,476 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:31:52,476 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 05:31:52,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:52 BoogieIcfgContainer [2021-11-20 05:31:52,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:31:52,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:31:52,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:31:52,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:31:52,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:31:51" (1/3) ... [2021-11-20 05:31:52,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262700be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:31:52, skipping insertion in model container [2021-11-20 05:31:52,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:52" (2/3) ... [2021-11-20 05:31:52,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262700be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:31:52, skipping insertion in model container [2021-11-20 05:31:52,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:52" (3/3) ... [2021-11-20 05:31:52,487 INFO L111 eAbstractionObserver]: Analyzing ICFG array6_pattern.c [2021-11-20 05:31:52,492 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:31:52,492 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:31:52,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:31:52,550 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 [2021-11-20 05:31:52,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:31:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:52,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 05:31:52,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:52,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:52,573 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:52,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2021-11-20 05:31:52,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062375135] [2021-11-20 05:31:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:52,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:31:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:52,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:31:52,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062375135] [2021-11-20 05:31:52,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062375135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:31:52,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:31:52,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:31:52,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541663711] [2021-11-20 05:31:52,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:31:52,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:31:52,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:31:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:31:52,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:31:52,772 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:31:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:31:52,792 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2021-11-20 05:31:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:31:52,794 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-20 05:31:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:31:52,801 INFO L225 Difference]: With dead ends: 47 [2021-11-20 05:31:52,801 INFO L226 Difference]: Without dead ends: 21 [2021-11-20 05:31:52,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:31:52,808 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:31:52,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:31:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-20 05:31:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-20 05:31:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-20 05:31:52,844 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2021-11-20 05:31:52,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:31:52,845 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-20 05:31:52,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:31:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-20 05:31:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 05:31:52,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:52,847 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:52,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:31:52,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2021-11-20 05:31:52,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:52,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680056053] [2021-11-20 05:31:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:52,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:31:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 05:31:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:31:52,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:31:52,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680056053] [2021-11-20 05:31:52,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680056053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:31:52,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:31:52,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:31:52,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007716665] [2021-11-20 05:31:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:31:52,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:31:52,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:31:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:31:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:31:52,999 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:31:53,027 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-11-20 05:31:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:31:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-20 05:31:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:31:53,029 INFO L225 Difference]: With dead ends: 26 [2021-11-20 05:31:53,029 INFO L226 Difference]: Without dead ends: 22 [2021-11-20 05:31:53,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:31:53,032 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:31:53,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:31:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-20 05:31:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-20 05:31:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-20 05:31:53,039 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2021-11-20 05:31:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:31:53,040 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-20 05:31:53,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-20 05:31:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 05:31:53,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:53,046 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:53,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:31:53,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:53,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2021-11-20 05:31:53,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:53,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384455257] [2021-11-20 05:31:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:53,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:31:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 05:31:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:53,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:31:53,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:31:53,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384455257] [2021-11-20 05:31:53,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384455257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:31:53,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:31:53,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:31:53,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797332062] [2021-11-20 05:31:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:31:53,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:31:53,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:31:53,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:31:53,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:31:53,252 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:31:53,320 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-11-20 05:31:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:31:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-11-20 05:31:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:31:53,322 INFO L225 Difference]: With dead ends: 41 [2021-11-20 05:31:53,323 INFO L226 Difference]: Without dead ends: 25 [2021-11-20 05:31:53,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:31:53,325 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:31:53,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:31:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-20 05:31:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-20 05:31:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-20 05:31:53,331 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2021-11-20 05:31:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:31:53,332 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-20 05:31:53,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-20 05:31:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 05:31:53,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:53,333 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:53,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:31:53,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:53,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2021-11-20 05:31:53,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:53,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036897739] [2021-11-20 05:31:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:53,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:53,376 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:31:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951726458] [2021-11-20 05:31:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:53,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:31:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:53,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:31:53,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:31:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:31:53,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:31:53,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 05:31:53,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:31:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:31:53,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:31:53,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036897739] [2021-11-20 05:31:53,886 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:31:53,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951726458] [2021-11-20 05:31:53,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951726458] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:31:53,887 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:31:53,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-20 05:31:53,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672650525] [2021-11-20 05:31:53,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:31:53,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:31:53,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:31:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:31:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:31:53,897 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:31:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:31:54,154 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2021-11-20 05:31:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 05:31:54,155 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2021-11-20 05:31:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:31:54,160 INFO L225 Difference]: With dead ends: 71 [2021-11-20 05:31:54,161 INFO L226 Difference]: Without dead ends: 43 [2021-11-20 05:31:54,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:31:54,171 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 61 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:31:54,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 86 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:31:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-20 05:31:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2021-11-20 05:31:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-11-20 05:31:54,185 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 26 [2021-11-20 05:31:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:31:54,186 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-20 05:31:54,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:31:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-11-20 05:31:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 05:31:54,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:54,188 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:54,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:54,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:31:54,407 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1559224519, now seen corresponding path program 2 times [2021-11-20 05:31:54,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:54,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36049981] [2021-11-20 05:31:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:54,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:54,418 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:31:54,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721315388] [2021-11-20 05:31:54,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:31:54,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:31:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:54,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:31:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:31:54,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:31:54,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:31:54,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:31:54,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:31:54,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:31:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:31:54,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:31:54,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36049981] [2021-11-20 05:31:54,732 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:31:54,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721315388] [2021-11-20 05:31:54,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721315388] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:31:54,733 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:31:54,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-11-20 05:31:54,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695284249] [2021-11-20 05:31:54,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:31:54,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 05:31:54,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:31:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 05:31:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:31:54,735 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:31:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:31:54,909 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-11-20 05:31:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:31:54,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2021-11-20 05:31:54,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:31:54,911 INFO L225 Difference]: With dead ends: 39 [2021-11-20 05:31:54,911 INFO L226 Difference]: Without dead ends: 35 [2021-11-20 05:31:54,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:31:54,912 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 66 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:31:54,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 95 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:31:54,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-20 05:31:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-20 05:31:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:31:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-20 05:31:54,919 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 30 [2021-11-20 05:31:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:31:54,919 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-20 05:31:54,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:31:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-20 05:31:54,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 05:31:54,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:31:54,921 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:31:54,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:31:55,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:31:55,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:31:55,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:31:55,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 3 times [2021-11-20 05:31:55,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:31:55,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11622217] [2021-11-20 05:31:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:31:55,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:31:55,131 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:31:55,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045831826] [2021-11-20 05:31:55,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:31:55,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:31:55,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:31:55,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:31:55,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:31:55,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-20 05:31:55,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:31:55,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-20 05:31:55,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:31:55,384 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 [2021-11-20 05:31:55,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:31:55,430 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 49 treesize of output 29 [2021-11-20 05:31:55,595 INFO L354 Elim1Store]: treesize reduction 54, result has 21.7 percent of original size [2021-11-20 05:31:55,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 52 [2021-11-20 05:31:55,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:31:55,937 INFO L354 Elim1Store]: treesize reduction 426, result has 10.1 percent of original size [2021-11-20 05:31:55,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 83 treesize of output 78 [2021-11-20 05:31:58,671 INFO L354 Elim1Store]: treesize reduction 3678, result has 9.6 percent of original size [2021-11-20 05:31:58,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 64 case distinctions, treesize of input 583 treesize of output 597 [2021-11-20 05:31:59,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,105 INFO L354 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2021-11-20 05:31:59,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 229 treesize of output 153 [2021-11-20 05:31:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,447 INFO L354 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2021-11-20 05:31:59,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 445 treesize of output 280 [2021-11-20 05:31:59,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:31:59,559 INFO L354 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2021-11-20 05:31:59,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 302 treesize of output 171 [2021-11-20 05:32:01,412 INFO L354 Elim1Store]: treesize reduction 980, result has 17.9 percent of original size [2021-11-20 05:32:01,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 132 treesize of output 260 [2021-11-20 05:32:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:03,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:20,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:20,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11622217] [2021-11-20 05:32:20,059 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:20,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045831826] [2021-11-20 05:32:20,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045831826] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:20,060 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:32:20,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2021-11-20 05:32:20,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920065725] [2021-11-20 05:32:20,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:20,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 05:32:20,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:20,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 05:32:20,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=828, Unknown=5, NotChecked=0, Total=992 [2021-11-20 05:32:20,063 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:20,447 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-11-20 05:32:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 05:32:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-20 05:32:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:20,449 INFO L225 Difference]: With dead ends: 59 [2021-11-20 05:32:20,449 INFO L226 Difference]: Without dead ends: 55 [2021-11-20 05:32:20,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=177, Invalid=1008, Unknown=5, NotChecked=0, Total=1190 [2021-11-20 05:32:20,451 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:20,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 194 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 109 Unchecked, 0.1s Time] [2021-11-20 05:32:20,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-20 05:32:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2021-11-20 05:32:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:32:20,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-11-20 05:32:20,463 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 34 [2021-11-20 05:32:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:20,463 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-11-20 05:32:20,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-11-20 05:32:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 05:32:20,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:20,466 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:20,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:20,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:20,679 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1565541619, now seen corresponding path program 4 times [2021-11-20 05:32:20,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:20,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562048493] [2021-11-20 05:32:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:20,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:20,701 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:20,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769747023] [2021-11-20 05:32:20,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 05:32:20,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:20,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:20,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:20,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:32:20,790 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 05:32:20,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:20,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 05:32:20,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:21,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:32:21,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:21,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562048493] [2021-11-20 05:32:21,151 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:21,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769747023] [2021-11-20 05:32:21,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769747023] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:21,151 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:32:21,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-20 05:32:21,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512379919] [2021-11-20 05:32:21,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:21,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:32:21,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:21,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:32:21,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:32:21,154 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:21,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:21,334 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2021-11-20 05:32:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:32:21,335 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-11-20 05:32:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:21,336 INFO L225 Difference]: With dead ends: 67 [2021-11-20 05:32:21,336 INFO L226 Difference]: Without dead ends: 45 [2021-11-20 05:32:21,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-11-20 05:32:21,337 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 78 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:21,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 91 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:32:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-20 05:32:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2021-11-20 05:32:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-11-20 05:32:21,345 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 36 [2021-11-20 05:32:21,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:21,346 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-11-20 05:32:21,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-11-20 05:32:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 05:32:21,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:21,347 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:21,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:21,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:21,562 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash -956776499, now seen corresponding path program 5 times [2021-11-20 05:32:21,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:21,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313988402] [2021-11-20 05:32:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:21,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:21,570 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:21,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121597643] [2021-11-20 05:32:21,571 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 05:32:21,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:21,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:21,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:21,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:32:21,660 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-20 05:32:21,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:21,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 05:32:21,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:21,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:32:21,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:21,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313988402] [2021-11-20 05:32:21,979 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:21,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121597643] [2021-11-20 05:32:21,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121597643] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:21,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:32:21,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-20 05:32:21,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734710577] [2021-11-20 05:32:21,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:21,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:32:21,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:21,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:32:21,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:32:21,981 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:22,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:22,204 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2021-11-20 05:32:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 05:32:22,205 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-11-20 05:32:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:22,206 INFO L225 Difference]: With dead ends: 44 [2021-11-20 05:32:22,206 INFO L226 Difference]: Without dead ends: 40 [2021-11-20 05:32:22,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-11-20 05:32:22,208 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 45 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:22,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 95 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:32:22,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-20 05:32:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-11-20 05:32:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-11-20 05:32:22,220 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 36 [2021-11-20 05:32:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:22,224 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-11-20 05:32:22,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-11-20 05:32:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 05:32:22,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:22,226 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:22,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-20 05:32:22,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:22,434 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:22,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash -285980785, now seen corresponding path program 6 times [2021-11-20 05:32:22,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:22,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923089044] [2021-11-20 05:32:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:22,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:22,443 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:22,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719871066] [2021-11-20 05:32:22,444 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 05:32:22,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:22,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:22,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:32:22,605 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-11-20 05:32:22,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:22,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-20 05:32:22,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:22,635 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 [2021-11-20 05:32:22,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:22,666 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 49 treesize of output 29 [2021-11-20 05:32:22,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2021-11-20 05:32:22,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:22,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:22,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:22,943 INFO L354 Elim1Store]: treesize reduction 40, result has 25.9 percent of original size [2021-11-20 05:32:22,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 99 treesize of output 89 [2021-11-20 05:32:23,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:23,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:23,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:23,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:23,231 INFO L354 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2021-11-20 05:32:23,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 112 treesize of output 113 [2021-11-20 05:32:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:24,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:24,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:24,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:26,412 INFO L354 Elim1Store]: treesize reduction 5168, result has 8.1 percent of original size [2021-11-20 05:32:26,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 16 new quantified variables, introduced 118 case distinctions, treesize of input 611 treesize of output 671 [2021-11-20 05:32:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:26,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 13 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 434 treesize of output 222 [2021-11-20 05:32:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,238 INFO L354 Elim1Store]: treesize reduction 114, result has 0.9 percent of original size [2021-11-20 05:32:27,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 8 case distinctions, treesize of input 454 treesize of output 1 [2021-11-20 05:32:27,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:32:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,402 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 13 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 445 treesize of output 227 [2021-11-20 05:32:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:27,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:27,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 13 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 437 treesize of output 221 [2021-11-20 05:32:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:29,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 704 treesize of output 632 [2021-11-20 05:32:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:30,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:30,121 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 05:32:30,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 501 treesize of output 305 [2021-11-20 05:32:31,587 INFO L354 Elim1Store]: treesize reduction 148, result has 36.5 percent of original size [2021-11-20 05:32:31,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 161 treesize of output 153 [2021-11-20 05:32:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:32,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:35,720 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~count~0#1_77| Int)) (or (<= c_~ARR_SIZE~0 |v_ULTIMATE.start_main_~count~0#1_77|) (< (+ |v_ULTIMATE.start_main_~count~0#1_77| 1) c_~ARR_SIZE~0) (= (let ((.cse5 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse5) (+ (select .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse5 4)) (select .cse6 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse5 (- 4))))))))) (let ((.cse0 (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5) (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5 (- 4))) (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse5 4))))))) (let ((.cse1 (select (store .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse0) |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse2 (* |v_ULTIMATE.start_main_~count~0#1_77| 4))) (+ (select .cse0 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse2)) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse2))))))) 0))) is different from false [2021-11-20 05:32:44,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:44,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923089044] [2021-11-20 05:32:44,356 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:44,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719871066] [2021-11-20 05:32:44,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719871066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:32:44,357 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:32:44,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-11-20 05:32:44,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445803152] [2021-11-20 05:32:44,357 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:44,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-20 05:32:44,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:44,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-20 05:32:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=953, Unknown=4, NotChecked=64, Total=1190 [2021-11-20 05:32:44,360 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 22 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:47,435 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2021-11-20 05:32:47,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 05:32:47,436 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 22 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-11-20 05:32:47,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:47,437 INFO L225 Difference]: With dead ends: 66 [2021-11-20 05:32:47,437 INFO L226 Difference]: Without dead ends: 62 [2021-11-20 05:32:47,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=227, Invalid=1332, Unknown=5, NotChecked=76, Total=1640 [2021-11-20 05:32:47,439 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 28 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:47,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 147 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 289 Invalid, 0 Unknown, 93 Unchecked, 0.5s Time] [2021-11-20 05:32:47,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-20 05:32:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2021-11-20 05:32:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 45 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 05:32:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2021-11-20 05:32:47,450 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 38 [2021-11-20 05:32:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:47,450 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2021-11-20 05:32:47,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 22 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:32:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2021-11-20 05:32:47,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:32:47,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:47,452 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:47,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-20 05:32:47,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:47,666 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash 103605969, now seen corresponding path program 7 times [2021-11-20 05:32:47,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:47,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62342366] [2021-11-20 05:32:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:47,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:47,672 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:47,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674141735] [2021-11-20 05:32:47,672 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 05:32:47,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:47,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:47,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:47,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:32:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:47,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 05:32:47,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:47,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:32:48,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:48,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62342366] [2021-11-20 05:32:48,066 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:48,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674141735] [2021-11-20 05:32:48,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674141735] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:48,066 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:32:48,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2021-11-20 05:32:48,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383604695] [2021-11-20 05:32:48,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:48,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:32:48,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:48,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:32:48,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:32:48,069 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:48,301 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2021-11-20 05:32:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 05:32:48,302 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2021-11-20 05:32:48,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:48,306 INFO L225 Difference]: With dead ends: 95 [2021-11-20 05:32:48,307 INFO L226 Difference]: Without dead ends: 79 [2021-11-20 05:32:48,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2021-11-20 05:32:48,309 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 86 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:48,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 115 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:32:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-20 05:32:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2021-11-20 05:32:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.0862068965517242) internal successors, (63), 58 states have internal predecessors, (63), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 05:32:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-11-20 05:32:48,338 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 40 [2021-11-20 05:32:48,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:48,338 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-11-20 05:32:48,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-11-20 05:32:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 05:32:48,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:48,340 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:48,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:48,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 05:32:48,546 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:48,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1011334033, now seen corresponding path program 8 times [2021-11-20 05:32:48,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:48,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238604651] [2021-11-20 05:32:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:48,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:48,562 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:48,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043090358] [2021-11-20 05:32:48,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:32:48,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:48,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:48,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:48,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:32:48,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:32:48,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:48,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 05:32:48,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:48,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:32:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:32:49,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:32:49,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238604651] [2021-11-20 05:32:49,079 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:32:49,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043090358] [2021-11-20 05:32:49,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043090358] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:32:49,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:32:49,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2021-11-20 05:32:49,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911960773] [2021-11-20 05:32:49,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:32:49,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:32:49,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:32:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:32:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:32:49,082 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:49,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:32:49,500 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2021-11-20 05:32:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 05:32:49,501 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2021-11-20 05:32:49,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:32:49,502 INFO L225 Difference]: With dead ends: 78 [2021-11-20 05:32:49,502 INFO L226 Difference]: Without dead ends: 74 [2021-11-20 05:32:49,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2021-11-20 05:32:49,503 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 38 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:32:49,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 187 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:32:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-20 05:32:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2021-11-20 05:32:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 60 states have internal predecessors, (65), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 05:32:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2021-11-20 05:32:49,545 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 40 [2021-11-20 05:32:49,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:32:49,545 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2021-11-20 05:32:49,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:32:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2021-11-20 05:32:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 05:32:49,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:32:49,549 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:49,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:49,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 05:32:49,769 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:32:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1282630227, now seen corresponding path program 9 times [2021-11-20 05:32:49,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:49,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869567238] [2021-11-20 05:32:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:49,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:49,784 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:32:49,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209531648] [2021-11-20 05:32:49,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:32:49,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:32:49,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:49,786 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:32:49,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:32:49,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-20 05:32:49,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:32:50,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-20 05:32:50,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:50,027 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 [2021-11-20 05:32:50,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,063 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 49 treesize of output 29 [2021-11-20 05:32:50,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 70 [2021-11-20 05:32:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,367 INFO L354 Elim1Store]: treesize reduction 37, result has 26.0 percent of original size [2021-11-20 05:32:50,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 78 treesize of output 71 [2021-11-20 05:32:50,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,679 INFO L354 Elim1Store]: treesize reduction 547, result has 10.6 percent of original size [2021-11-20 05:32:50,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 108 treesize of output 104 [2021-11-20 05:32:50,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:50,986 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:51,135 INFO L354 Elim1Store]: treesize reduction 727, result has 8.2 percent of original size [2021-11-20 05:32:51,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 241 treesize of output 147 [2021-11-20 05:32:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:54,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:54,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:54,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:54,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:57,614 INFO L354 Elim1Store]: treesize reduction 6544, result has 11.0 percent of original size [2021-11-20 05:32:57,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 14 select indices, 14 select index equivalence classes, 3 disjoint index pairs (out of 91 index pairs), introduced 18 new quantified variables, introduced 151 case distinctions, treesize of input 751 treesize of output 1055 [2021-11-20 05:32:57,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:57,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,041 INFO L244 Elim1Store]: Index analysis took 147 ms [2021-11-20 05:32:58,115 INFO L354 Elim1Store]: treesize reduction 159, result has 7.6 percent of original size [2021-11-20 05:32:58,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 19 disjoint index pairs (out of 91 index pairs), introduced 12 new quantified variables, introduced 14 case distinctions, treesize of input 262 treesize of output 174 [2021-11-20 05:32:58,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:32:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 13 disjoint index pairs (out of 78 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 159 [2021-11-20 05:32:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,767 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:58,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:58,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 13 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 154 [2021-11-20 05:32:59,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 159 [2021-11-20 05:32:59,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:32:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:32:59,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 154 [2021-11-20 05:32:59,615 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:32:59,667 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:32:59,959 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:00,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:00,077 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:00,196 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:00,244 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:00,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:00,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:00,817 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 05:33:00,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 29 disjoint index pairs (out of 105 index pairs), introduced 12 new quantified variables, introduced 2 case distinctions, treesize of input 281 treesize of output 169 [2021-11-20 05:33:01,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,257 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-11-20 05:33:01,333 INFO L354 Elim1Store]: treesize reduction 226, result has 5.4 percent of original size [2021-11-20 05:33:01,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 41 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 16 case distinctions, treesize of input 290 treesize of output 184 [2021-11-20 05:33:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:01,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:01,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:01,813 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-20 05:33:01,831 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 05:33:01,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 29 disjoint index pairs (out of 91 index pairs), introduced 12 new quantified variables, introduced 2 case distinctions, treesize of input 270 treesize of output 164 [2021-11-20 05:33:02,129 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:02,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,268 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 05:33:02,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 19 disjoint index pairs (out of 105 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 281 treesize of output 169 [2021-11-20 05:33:02,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:02,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:33:02,643 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 05:33:02,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 19 disjoint index pairs (out of 91 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 270 treesize of output 164 [2021-11-20 05:33:02,736 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:33:21,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,498 INFO L244 Elim1Store]: Index analysis took 197 ms [2021-11-20 05:33:21,683 INFO L354 Elim1Store]: treesize reduction 296, result has 18.9 percent of original size [2021-11-20 05:33:21,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 33 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 24 case distinctions, treesize of input 349 treesize of output 291 [2021-11-20 05:33:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:21,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:33:22,104 INFO L354 Elim1Store]: treesize reduction 296, result has 18.9 percent of original size [2021-11-20 05:33:22,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 33 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 24 case distinctions, treesize of input 401 treesize of output 264 [2021-11-20 05:34:37,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:34:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:34:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:34:37,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:34:39,113 INFO L354 Elim1Store]: treesize reduction 1676, result has 20.1 percent of original size [2021-11-20 05:34:39,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 10 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 244 treesize of output 540 [2021-11-20 05:34:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:34:54,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:35:04,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869567238] [2021-11-20 05:35:04,884 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:35:04,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209531648] [2021-11-20 05:35:04,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209531648] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:35:04,884 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:35:04,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2021-11-20 05:35:04,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793727544] [2021-11-20 05:35:04,885 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 05:35:04,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-20 05:35:04,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-20 05:35:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1581, Unknown=2, NotChecked=0, Total=1806 [2021-11-20 05:35:04,887 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:35:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:06,517 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2021-11-20 05:35:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 05:35:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2021-11-20 05:35:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:35:06,519 INFO L225 Difference]: With dead ends: 99 [2021-11-20 05:35:06,519 INFO L226 Difference]: Without dead ends: 95 [2021-11-20 05:35:06,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=268, Invalid=1986, Unknown=2, NotChecked=0, Total=2256 [2021-11-20 05:35:06,521 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 174 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:35:06,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 280 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 174 Unchecked, 0.3s Time] [2021-11-20 05:35:06,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-20 05:35:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2021-11-20 05:35:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.0869565217391304) internal successors, (75), 69 states have internal predecessors, (75), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 05:35:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2021-11-20 05:35:06,539 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 42 [2021-11-20 05:35:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:35:06,539 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2021-11-20 05:35:06,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 27 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:35:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2021-11-20 05:35:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 05:35:06,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:35:06,541 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:06,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:06,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 05:35:06,754 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:35:06,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:06,755 INFO L85 PathProgramCache]: Analyzing trace with hash 5267605, now seen corresponding path program 10 times [2021-11-20 05:35:06,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:06,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630450063] [2021-11-20 05:35:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:06,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:06,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:35:06,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983530625] [2021-11-20 05:35:06,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 05:35:06,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:35:06,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:06,770 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:35:06,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 05:35:06,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 05:35:06,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:35:06,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 05:35:06,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:35:07,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:35:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:35:07,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:07,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630450063] [2021-11-20 05:35:07,360 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:35:07,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983530625] [2021-11-20 05:35:07,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983530625] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:35:07,360 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:35:07,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2021-11-20 05:35:07,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901855622] [2021-11-20 05:35:07,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:35:07,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-20 05:35:07,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:07,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-20 05:35:07,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:35:07,362 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:35:07,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:07,932 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2021-11-20 05:35:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 05:35:07,934 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2021-11-20 05:35:07,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:35:07,935 INFO L225 Difference]: With dead ends: 153 [2021-11-20 05:35:07,935 INFO L226 Difference]: Without dead ends: 135 [2021-11-20 05:35:07,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 05:35:07,936 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 88 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:35:07,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 202 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:35:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-20 05:35:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 101. [2021-11-20 05:35:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 86 states have (on average 1.0930232558139534) internal successors, (94), 86 states have internal predecessors, (94), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 05:35:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2021-11-20 05:35:07,967 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 44 [2021-11-20 05:35:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:35:07,969 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2021-11-20 05:35:07,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 05:35:07,969 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2021-11-20 05:35:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 05:35:07,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:35:07,973 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:08,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:08,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 05:35:08,194 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:35:08,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1257303952, now seen corresponding path program 1 times [2021-11-20 05:35:08,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:08,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510783988] [2021-11-20 05:35:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:08,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:08,202 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:35:08,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369169800] [2021-11-20 05:35:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:08,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:35:08,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:08,204 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:35:08,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f6f7cf-aefd-4289-a707-4f081857bd30/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 05:35:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:08,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-20 05:35:08,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:08,421 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 [2021-11-20 05:35:08,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:08,441 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 49 treesize of output 29 [2021-11-20 05:35:08,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2021-11-20 05:35:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:08,692 INFO L354 Elim1Store]: treesize reduction 40, result has 25.9 percent of original size [2021-11-20 05:35:08,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 99 treesize of output 89 [2021-11-20 05:35:08,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:08,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:08,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:09,004 INFO L354 Elim1Store]: treesize reduction 47, result has 19.0 percent of original size [2021-11-20 05:35:09,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 112 treesize of output 113 [2021-11-20 05:35:10,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:10,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:10,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:12,175 INFO L354 Elim1Store]: treesize reduction 5167, result has 8.1 percent of original size [2021-11-20 05:35:12,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 16 new quantified variables, introduced 118 case distinctions, treesize of input 611 treesize of output 672 [2021-11-20 05:35:12,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,331 INFO L354 Elim1Store]: treesize reduction 51, result has 10.5 percent of original size [2021-11-20 05:35:12,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 377 treesize of output 189 [2021-11-20 05:35:12,529 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:35:12,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:12,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:12,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:12,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 13 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 162 [2021-11-20 05:35:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,365 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 05:35:14,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 594 treesize of output 480 [2021-11-20 05:35:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:14,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:14,505 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 05:35:14,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 407 treesize of output 279 [2021-11-20 05:35:16,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:16,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:35:16,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:16,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:35:16,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:39:12,542 WARN L227 SmtUtils]: Spent 3.94m on a formula simplification. DAG size of input: 2413 DAG size of output: 675 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 05:39:12,545 INFO L354 Elim1Store]: treesize reduction 17185, result has 15.3 percent of original size [2021-11-20 05:39:12,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 44 select indices, 44 select index equivalence classes, 6 disjoint index pairs (out of 946 index pairs), introduced 48 new quantified variables, introduced 1126 case distinctions, treesize of input 995 treesize of output 3482 [2021-11-20 05:43:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:43:37,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:37,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:43:39,842 INFO L354 Elim1Store]: treesize reduction 1048, result has 9.1 percent of original size [2021-11-20 05:43:39,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 11 disjoint index pairs (out of 861 index pairs), introduced 36 new quantified variables, introduced 773 case distinctions, treesize of input 8365 treesize of output 7087 [2021-11-20 05:45:05,395 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 05:45:05,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,974 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-20 05:45:05,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:45:05,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:05,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:45:07,575 INFO L354 Elim1Store]: treesize reduction 804, result has 10.4 percent of original size [2021-11-20 05:45:07,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 41 select indices, 41 select index equivalence classes, 11 disjoint index pairs (out of 820 index pairs), introduced 32 new quantified variables, introduced 708 case distinctions, treesize of input 8358 treesize of output 7072