./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU --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 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:21:40,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:21:40,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:21:40,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:21:40,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:21:40,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:21:40,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:21:40,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:21:40,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:21:40,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:21:40,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:21:40,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:21:40,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:21:40,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:21:40,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:21:40,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:21:40,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:21:40,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:21:40,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:21:40,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:21:40,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:21:40,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:21:40,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:21:40,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:21:40,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:21:40,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:21:40,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:21:40,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:21:40,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:21:40,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:21:40,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:21:40,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:21:40,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:21:40,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:21:40,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:21:40,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:21:40,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:21:40,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:21:40,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:21:40,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:21:40,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:21:40,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:21:41,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:21:41,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:21:41,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:21:41,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:21:41,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:21:41,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:21:41,008 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:21:41,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:21:41,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:21:41,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:21:41,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:21:41,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:21:41,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:21:41,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:21:41,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:21:41,012 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:21:41,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:21:41,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:21:41,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:21:41,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:21:41,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:21:41,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:21:41,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:21:41,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:21:41,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:21:41,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:21:41,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:21:41,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:21:41,015 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:21:41,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:21:41,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:21:41,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:21:41,018 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_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 [2021-11-02 22:21:41,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:21:41,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:21:41,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:21:41,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:21:41,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:21:41,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/array-fpi/ifeqn1.c [2021-11-02 22:21:41,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/data/fc2f9dbd0/01c6f55bebb940f5bdd8b0d1ee8d9886/FLAGff8900b4b [2021-11-02 22:21:42,123 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:21:42,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/sv-benchmarks/c/array-fpi/ifeqn1.c [2021-11-02 22:21:42,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/data/fc2f9dbd0/01c6f55bebb940f5bdd8b0d1ee8d9886/FLAGff8900b4b [2021-11-02 22:21:42,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/data/fc2f9dbd0/01c6f55bebb940f5bdd8b0d1ee8d9886 [2021-11-02 22:21:42,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:21:42,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:21:42,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:21:42,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:21:42,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:21:42,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4954e920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42, skipping insertion in model container [2021-11-02 22:21:42,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:21:42,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:21:42,661 WARN L228 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_82de7fee-5972-4129-a728-56f39a90c308/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2021-11-02 22:21:42,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:21:42,724 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:21:42,737 WARN L228 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_82de7fee-5972-4129-a728-56f39a90c308/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2021-11-02 22:21:42,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:21:42,761 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:21:42,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42 WrapperNode [2021-11-02 22:21:42,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:21:42,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:21:42,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:21:42,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:21:42,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:21:42,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:21:42,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:21:42,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:21:42,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:21:42,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:21:42,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:21:42,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:21:42,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (1/1) ... [2021-11-02 22:21:42,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:21:42,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:42,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:21:42,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:21:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:21:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:21:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:21:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:21:42,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:21:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:21:42,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:21:43,249 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:21:43,249 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-02 22:21:43,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:21:43 BoogieIcfgContainer [2021-11-02 22:21:43,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:21:43,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:21:43,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:21:43,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:21:43,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:21:42" (1/3) ... [2021-11-02 22:21:43,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595da2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:21:43, skipping insertion in model container [2021-11-02 22:21:43,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:42" (2/3) ... [2021-11-02 22:21:43,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595da2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:21:43, skipping insertion in model container [2021-11-02 22:21:43,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:21:43" (3/3) ... [2021-11-02 22:21:43,262 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn1.c [2021-11-02 22:21:43,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:21:43,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:21:43,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:21:43,376 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 [2021-11-02 22:21:43,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:21:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 22:21:43,443 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:43,444 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:43,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:43,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:43,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2021-11-02 22:21:43,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:43,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43748412] [2021-11-02 22:21:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:43,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:21:43,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:43,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43748412] [2021-11-02 22:21:43,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43748412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:21:43,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:21:43,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:21:43,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113438277] [2021-11-02 22:21:43,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:21:43,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:21:43,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:21:43,782 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:43,812 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-11-02 22:21:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:21:43,814 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-02 22:21:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:43,832 INFO L225 Difference]: With dead ends: 42 [2021-11-02 22:21:43,832 INFO L226 Difference]: Without dead ends: 19 [2021-11-02 22:21:43,838 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:21:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-02 22:21:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-02 22:21:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-02 22:21:43,888 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-11-02 22:21:43,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:43,889 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-02 22:21:43,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:43,890 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-02 22:21:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 22:21:43,891 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:43,891 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:43,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:21:43,894 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:43,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:43,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2021-11-02 22:21:43,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:43,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839310884] [2021-11-02 22:21:43,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:43,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:21:44,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:44,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839310884] [2021-11-02 22:21:44,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839310884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:21:44,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:21:44,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:21:44,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309511108] [2021-11-02 22:21:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:21:44,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:21:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:21:44,084 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:44,205 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-11-02 22:21:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:21:44,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-02 22:21:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:44,207 INFO L225 Difference]: With dead ends: 45 [2021-11-02 22:21:44,208 INFO L226 Difference]: Without dead ends: 31 [2021-11-02 22:21:44,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:21:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-02 22:21:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-11-02 22:21:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-02 22:21:44,216 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-11-02 22:21:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:44,217 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-02 22:21:44,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-02 22:21:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 22:21:44,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:44,219 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:44,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:21:44,219 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2021-11-02 22:21:44,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:44,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460121566] [2021-11-02 22:21:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:44,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:44,266 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:44,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140565725] [2021-11-02 22:21:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:44,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:44,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:44,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:21:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:44,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:21:44,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:44,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:21:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 22:21:44,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:44,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460121566] [2021-11-02 22:21:44,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:44,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140565725] [2021-11-02 22:21:44,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140565725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:21:44,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:21:44,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:21:44,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29037487] [2021-11-02 22:21:44,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:21:44,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:44,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:21:44,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:21:44,706 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:44,891 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-11-02 22:21:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:21:44,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-02 22:21:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:44,895 INFO L225 Difference]: With dead ends: 40 [2021-11-02 22:21:44,896 INFO L226 Difference]: Without dead ends: 38 [2021-11-02 22:21:44,897 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:21:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-02 22:21:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2021-11-02 22:21:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-02 22:21:44,912 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 18 [2021-11-02 22:21:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:44,913 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-02 22:21:44,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-02 22:21:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-02 22:21:44,915 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:44,916 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:44,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:21:45,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:45,135 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash 259417010, now seen corresponding path program 1 times [2021-11-02 22:21:45,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:45,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349037182] [2021-11-02 22:21:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:45,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:45,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:45,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877681694] [2021-11-02 22:21:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:45,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:45,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:45,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:45,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:21:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:45,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:21:45,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:21:45,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:45,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349037182] [2021-11-02 22:21:45,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:45,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877681694] [2021-11-02 22:21:45,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877681694] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:21:45,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:21:45,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-11-02 22:21:45,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407281241] [2021-11-02 22:21:45,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 22:21:45,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:45,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 22:21:45,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:21:45,451 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:45,617 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2021-11-02 22:21:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:21:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-02 22:21:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:45,620 INFO L225 Difference]: With dead ends: 70 [2021-11-02 22:21:45,620 INFO L226 Difference]: Without dead ends: 43 [2021-11-02 22:21:45,622 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:21:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-02 22:21:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2021-11-02 22:21:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-02 22:21:45,635 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 21 [2021-11-02 22:21:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:45,636 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-02 22:21:45,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-02 22:21:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-02 22:21:45,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:45,637 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:45,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:21:45,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:45,861 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:45,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash 939318754, now seen corresponding path program 1 times [2021-11-02 22:21:45,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:45,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655175311] [2021-11-02 22:21:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:45,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:45,894 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:45,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965373548] [2021-11-02 22:21:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:45,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:45,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:45,897 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:45,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 22:21:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:46,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-02 22:21:46,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:46,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:21:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:46,420 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-02 22:21:46,421 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 1 case distinctions, treesize of input 31 treesize of output 29 [2021-11-02 22:21:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 22:21:46,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:46,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655175311] [2021-11-02 22:21:46,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:46,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965373548] [2021-11-02 22:21:46,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965373548] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:21:46,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:21:46,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-11-02 22:21:46,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598814940] [2021-11-02 22:21:46,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:21:46,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:21:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:21:46,691 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:47,112 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2021-11-02 22:21:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 22:21:47,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-02 22:21:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:47,115 INFO L225 Difference]: With dead ends: 69 [2021-11-02 22:21:47,116 INFO L226 Difference]: Without dead ends: 57 [2021-11-02 22:21:47,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:21:47,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-02 22:21:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 33. [2021-11-02 22:21:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2021-11-02 22:21:47,126 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 24 [2021-11-02 22:21:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:47,127 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-11-02 22:21:47,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-11-02 22:21:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-02 22:21:47,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:47,130 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:47,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:21:47,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:47,355 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash -672376363, now seen corresponding path program 2 times [2021-11-02 22:21:47,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:47,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914148145] [2021-11-02 22:21:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:47,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:47,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:47,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365585699] [2021-11-02 22:21:47,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:21:47,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:47,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:47,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 22:21:47,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:21:47,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:21:47,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:21:47,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:21:47,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:47,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914148145] [2021-11-02 22:21:47,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:47,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365585699] [2021-11-02 22:21:47,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365585699] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:21:47,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:21:47,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-11-02 22:21:47,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523257772] [2021-11-02 22:21:47,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:21:47,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:21:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:21:47,717 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:47,925 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2021-11-02 22:21:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 22:21:47,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-02 22:21:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:47,929 INFO L225 Difference]: With dead ends: 94 [2021-11-02 22:21:47,929 INFO L226 Difference]: Without dead ends: 73 [2021-11-02 22:21:47,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:21:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-02 22:21:47,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 48. [2021-11-02 22:21:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2021-11-02 22:21:47,947 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 27 [2021-11-02 22:21:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:47,947 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2021-11-02 22:21:47,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2021-11-02 22:21:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-02 22:21:47,949 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:47,950 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:47,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:21:48,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:48,163 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:48,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:48,163 INFO L85 PathProgramCache]: Analyzing trace with hash 430403928, now seen corresponding path program 1 times [2021-11-02 22:21:48,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:48,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972663437] [2021-11-02 22:21:48,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:48,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:48,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:48,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277621219] [2021-11-02 22:21:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:48,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:48,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:48,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:48,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 22:21:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:48,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-02 22:21:48,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:48,384 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 [2021-11-02 22:21:48,433 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 11 treesize of output 7 [2021-11-02 22:21:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:48,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2021-11-02 22:21:48,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:48,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2021-11-02 22:21:48,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:48,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:48,874 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-02 22:21:48,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 42 [2021-11-02 22:21:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:21:49,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:49,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972663437] [2021-11-02 22:21:49,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:49,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277621219] [2021-11-02 22:21:49,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277621219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:21:49,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:21:49,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-02 22:21:49,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840614314] [2021-11-02 22:21:49,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-02 22:21:49,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-02 22:21:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:21:49,218 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:49,677 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2021-11-02 22:21:49,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:21:49,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-02 22:21:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:21:49,679 INFO L225 Difference]: With dead ends: 113 [2021-11-02 22:21:49,679 INFO L226 Difference]: Without dead ends: 57 [2021-11-02 22:21:49,680 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-02 22:21:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-02 22:21:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2021-11-02 22:21:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-02 22:21:49,687 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 28 [2021-11-02 22:21:49,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:21:49,688 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-02 22:21:49,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-02 22:21:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-02 22:21:49,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:21:49,689 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:49,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:21:49,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-02 22:21:49,890 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:21:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1487245307, now seen corresponding path program 3 times [2021-11-02 22:21:49,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:49,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980304703] [2021-11-02 22:21:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:49,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:49,916 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:21:49,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505955205] [2021-11-02 22:21:49,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:21:49,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:21:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:49,918 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:21:49,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 22:21:50,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-02 22:21:50,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:21:50,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 22:21:50,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:21:50,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 22:21:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,821 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-02 22:21:50,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 229 treesize of output 397 [2021-11-02 22:21:50,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:50,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:50,989 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-02 22:21:50,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 179 treesize of output 115 [2021-11-02 22:21:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,089 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,096 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,106 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-02 22:21:51,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 180 treesize of output 115 [2021-11-02 22:21:51,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,140 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-02 22:21:51,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 100 [2021-11-02 22:21:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,484 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-02 22:21:51,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 262 treesize of output 502 [2021-11-02 22:21:51,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,859 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-02 22:21:51,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 377 treesize of output 233 [2021-11-02 22:21:51,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,997 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:51,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:51,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,013 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-02 22:21:52,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 433 treesize of output 243 [2021-11-02 22:21:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:21:52,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:21:52,088 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-02 22:21:52,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 273 treesize of output 114 [2021-11-02 22:21:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-02 22:21:56,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:56,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980304703] [2021-11-02 22:21:56,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:21:56,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505955205] [2021-11-02 22:21:56,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505955205] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:21:56,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:21:56,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-02 22:21:56,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681047048] [2021-11-02 22:21:56,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-02 22:21:56,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:56,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-02 22:21:56,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=158, Unknown=4, NotChecked=0, Total=210 [2021-11-02 22:21:56,037 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:04,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:22:04,444 INFO L93 Difference]: Finished difference Result 112 states and 128 transitions. [2021-11-02 22:22:04,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 22:22:04,445 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-02 22:22:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:22:04,447 INFO L225 Difference]: With dead ends: 112 [2021-11-02 22:22:04,447 INFO L226 Difference]: Without dead ends: 90 [2021-11-02 22:22:04,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=120, Invalid=428, Unknown=4, NotChecked=0, Total=552 [2021-11-02 22:22:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-02 22:22:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 63. [2021-11-02 22:22:04,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 62 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:04,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2021-11-02 22:22:04,459 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 30 [2021-11-02 22:22:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:22:04,460 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-11-02 22:22:04,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2021-11-02 22:22:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 22:22:04,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:22:04,462 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:22:04,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:22:04,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:22:04,666 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:22:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:22:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash 939270440, now seen corresponding path program 2 times [2021-11-02 22:22:04,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:22:04,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921043871] [2021-11-02 22:22:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:22:04,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:22:04,689 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:22:04,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219470314] [2021-11-02 22:22:04,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:22:04,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:22:04,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:22:04,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:22:04,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-02 22:22:04,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:22:04,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:22:04,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:22:04,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:22:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:22:05,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:22:05,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921043871] [2021-11-02 22:22:05,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 22:22:05,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219470314] [2021-11-02 22:22:05,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219470314] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:22:05,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:22:05,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-11-02 22:22:05,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670342885] [2021-11-02 22:22:05,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:22:05,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:22:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:22:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:22:05,066 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:05,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:22:05,241 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2021-11-02 22:22:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:22:05,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-02 22:22:05,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:22:05,243 INFO L225 Difference]: With dead ends: 117 [2021-11-02 22:22:05,243 INFO L226 Difference]: Without dead ends: 61 [2021-11-02 22:22:05,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:22:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-02 22:22:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2021-11-02 22:22:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-11-02 22:22:05,255 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 31 [2021-11-02 22:22:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:22:05,256 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-11-02 22:22:05,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:22:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-11-02 22:22:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-02 22:22:05,257 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:22:05,258 INFO L513 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] [2021-11-02 22:22:05,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:22:05,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:22:05,476 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:22:05,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:22:05,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1646708229, now seen corresponding path program 3 times [2021-11-02 22:22:05,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:22:05,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824157127] [2021-11-02 22:22:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:22:05,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:22:05,527 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 22:22:05,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299028687] [2021-11-02 22:22:05,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:22:05,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:22:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:22:05,538 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:22:05,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82de7fee-5972-4129-a728-56f39a90c308/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 22:22:05,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-02 22:22:05,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:22:05,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-02 22:22:05,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:22:05,971 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 [2021-11-02 22:22:06,030 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 11 treesize of output 7 [2021-11-02 22:22:06,353 INFO L354 Elim1Store]: treesize reduction 618, result has 21.5 percent of original size [2021-11-02 22:22:06,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 289 [2021-11-02 22:22:06,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 60 [2021-11-02 22:22:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-02 22:22:06,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 74 [2021-11-02 22:22:06,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,815 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-02 22:22:06,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 52 [2021-11-02 22:22:06,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:06,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 52 [2021-11-02 22:22:07,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 53 [2021-11-02 22:22:07,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,220 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-02 22:22:07,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 287 treesize of output 199 [2021-11-02 22:22:07,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-02 22:22:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 56 [2021-11-02 22:22:07,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:07,620 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-02 22:22:07,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 230 treesize of output 129 [2021-11-02 22:22:08,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,666 INFO L354 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2021-11-02 22:22:08,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 4 case distinctions, treesize of input 364 treesize of output 490 [2021-11-02 22:22:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:08,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 88 [2021-11-02 22:22:09,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,145 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-02 22:22:09,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 88 [2021-11-02 22:22:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 96 [2021-11-02 22:22:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,645 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-02 22:22:09,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 96 [2021-11-02 22:22:09,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:09,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,008 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-02 22:22:10,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 656 treesize of output 558 [2021-11-02 22:22:10,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:10,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 255 [2021-11-02 22:22:11,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,276 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-02 22:22:11,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 134 [2021-11-02 22:22:11,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:22:11,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 426 treesize of output 214 [2021-11-02 22:22:58,326 WARN L207 SmtUtils]: Spent 37.08 s on a formula simplification that was a NOOP. DAG size: 163 [2021-11-02 22:23:48,469 WARN L207 SmtUtils]: Spent 47.46 s on a formula simplification that was a NOOP. DAG size: 165 [2021-11-02 22:23:50,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:23:50,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:23:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:25:23,476 WARN L207 SmtUtils]: Spent 1.55 m on a formula simplification. DAG size of input: 690 DAG size of output: 1 [2021-11-02 22:25:23,476 INFO L354 Elim1Store]: treesize reduction 3266, result has 0.0 percent of original size [2021-11-02 22:25:23,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 4 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 150 case distinctions, treesize of input 681 treesize of output 648 [2021-11-02 22:26:18,763 WARN L207 SmtUtils]: Spent 48.33 s on a formula simplification that was a NOOP. DAG size: 244 [2021-11-02 22:27:09,341 WARN L207 SmtUtils]: Spent 48.03 s on a formula simplification that was a NOOP. DAG size: 244 [2021-11-02 22:27:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,767 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:27:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 22:27:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:27:11,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:28:22,666 WARN L207 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 757 DAG size of output: 1 [2021-11-02 22:28:22,666 INFO L354 Elim1Store]: treesize reduction 3759, result has 0.0 percent of original size [2021-11-02 22:28:22,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 23 select indices, 23 select index equivalence classes, 13 disjoint index pairs (out of 253 index pairs), introduced 25 new quantified variables, introduced 180 case distinctions, treesize of input 898 treesize of output 1725 [2021-11-02 22:30:40,003 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-02 22:30:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:40,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 22:30:42,350 INFO L244 Elim1Store]: Index analysis took 2213 ms [2021-11-02 22:34:58,587 WARN L207 SmtUtils]: Spent 4.27 m on a formula simplification. DAG size of input: 377 DAG size of output: 1 [2021-11-02 22:34:58,587 INFO L354 Elim1Store]: treesize reduction 1584, result has 0.1 percent of original size [2021-11-02 22:34:58,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 105 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 70 case distinctions, treesize of input 1483 treesize of output 1073