./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array16_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array16_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:44:47,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:44:47,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:44:47,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:44:47,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:44:47,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:44:47,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:44:47,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:44:47,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:44:47,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:44:47,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:44:47,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:44:47,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:44:47,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:44:47,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:44:47,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:44:47,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:44:47,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:44:47,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:44:47,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:44:47,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:44:47,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:44:47,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:44:47,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:44:47,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:44:47,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:44:47,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:44:47,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:44:47,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:44:47,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:44:47,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:44:47,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:44:47,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:44:47,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:44:47,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:44:47,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:44:47,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:44:47,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:44:47,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:44:47,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:44:47,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:44:47,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:44:47,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:44:47,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:44:47,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:44:47,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:44:47,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:44:47,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:44:47,946 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:44:47,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:44:47,947 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:44:47,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:44:47,948 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:44:47,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:44:47,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:44:47,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:44:47,949 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:44:47,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:44:47,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:44:47,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:44:47,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:44:47,951 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:44:47,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:44:47,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:44:47,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:44:47,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:44:47,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:44:47,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:44:47,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:44:47,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:44:47,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:44:47,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:44:47,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:44:47,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:44:47,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:44:47,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:44:47,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:44:47,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:44:47,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:44:47,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:44:47,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:44:47,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:44:47,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:44:47,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d [2021-11-25 18:44:48,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:44:48,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:44:48,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:44:48,254 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:44:48,255 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:44:48,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-patterns/array16_pattern.c [2021-11-25 18:44:48,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/data/e901d8093/86b26f681edc4f18b98e60fc9cb623d5/FLAGe66cf5ffd [2021-11-25 18:44:48,762 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:44:48,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/sv-benchmarks/c/array-patterns/array16_pattern.c [2021-11-25 18:44:48,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/data/e901d8093/86b26f681edc4f18b98e60fc9cb623d5/FLAGe66cf5ffd [2021-11-25 18:44:49,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/data/e901d8093/86b26f681edc4f18b98e60fc9cb623d5 [2021-11-25 18:44:49,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:44:49,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:44:49,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:44:49,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:44:49,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:44:49,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3326db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49, skipping insertion in model container [2021-11-25 18:44:49,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:44:49,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:44:49,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2021-11-25 18:44:49,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:44:49,486 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:44:49,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2021-11-25 18:44:49,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:44:49,547 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:44:49,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49 WrapperNode [2021-11-25 18:44:49,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:44:49,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:44:49,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:44:49,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:44:49,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,608 INFO L137 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2021-11-25 18:44:49,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:44:49,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:44:49,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:44:49,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:44:49,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:44:49,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:44:49,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:44:49,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:44:49,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (1/1) ... [2021-11-25 18:44:49,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:44:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:49,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:44:49,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:44:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:44:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 18:44:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 18:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:44:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:44:49,820 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:44:49,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:44:50,038 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:44:50,115 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:44:50,115 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 18:44:50,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:44:50 BoogieIcfgContainer [2021-11-25 18:44:50,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:44:50,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:44:50,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:44:50,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:44:50,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:44:49" (1/3) ... [2021-11-25 18:44:50,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680481a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:44:50, skipping insertion in model container [2021-11-25 18:44:50,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:44:49" (2/3) ... [2021-11-25 18:44:50,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680481a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:44:50, skipping insertion in model container [2021-11-25 18:44:50,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:44:50" (3/3) ... [2021-11-25 18:44:50,125 INFO L111 eAbstractionObserver]: Analyzing ICFG array16_pattern.c [2021-11-25 18:44:50,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:44:50,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:44:50,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:44:50,185 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=FINITE_AUTOMATA, 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 [2021-11-25 18:44:50,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:44:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:44:50,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:44:50,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:50,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:50,207 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:50,213 INFO L85 PathProgramCache]: Analyzing trace with hash 315434556, now seen corresponding path program 1 times [2021-11-25 18:44:50,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:50,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273550490] [2021-11-25 18:44:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:50,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:50,317 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:44:50,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143079837] [2021-11-25 18:44:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:50,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:50,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:50,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:50,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:44:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:50,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 18:44:50,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:44:50,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:44:50,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:44:50,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273550490] [2021-11-25 18:44:50,488 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:44:50,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143079837] [2021-11-25 18:44:50,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143079837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:44:50,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:44:50,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:44:50,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643277914] [2021-11-25 18:44:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:44:50,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:44:50,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:44:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:44:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:44:50,534 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:44:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:44:50,585 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-11-25 18:44:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:44:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 18:44:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:44:50,595 INFO L225 Difference]: With dead ends: 28 [2021-11-25 18:44:50,596 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 18:44:50,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:44:50,605 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:44:50,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:44:50,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 18:44:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-25 18:44:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:44:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-11-25 18:44:50,644 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2021-11-25 18:44:50,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:44:50,647 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-25 18:44:50,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:44:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-25 18:44:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:44:50,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:50,650 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:50,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:44:50,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 18:44:50,865 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:50,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:50,866 INFO L85 PathProgramCache]: Analyzing trace with hash 644195277, now seen corresponding path program 1 times [2021-11-25 18:44:50,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:50,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077705172] [2021-11-25 18:44:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:50,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:50,882 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:44:50,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417682956] [2021-11-25 18:44:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:50,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:50,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:50,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:50,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:44:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:50,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:44:50,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:51,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:44:51,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:44:51,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077705172] [2021-11-25 18:44:51,156 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:44:51,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417682956] [2021-11-25 18:44:51,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417682956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:44:51,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:44:51,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:44:51,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549817993] [2021-11-25 18:44:51,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:44:51,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:44:51,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:44:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:44:51,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:44:51,178 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:44:51,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:44:51,276 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-11-25 18:44:51,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:44:51,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-11-25 18:44:51,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:44:51,278 INFO L225 Difference]: With dead ends: 37 [2021-11-25 18:44:51,278 INFO L226 Difference]: Without dead ends: 24 [2021-11-25 18:44:51,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:44:51,280 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:44:51,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 21 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:44:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-25 18:44:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-11-25 18:44:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:44:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-11-25 18:44:51,294 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 19 [2021-11-25 18:44:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:44:51,295 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-11-25 18:44:51,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:44:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-25 18:44:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 18:44:51,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:51,298 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:51,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:44:51,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:51,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash 325873406, now seen corresponding path program 1 times [2021-11-25 18:44:51,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:51,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096550746] [2021-11-25 18:44:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:51,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:51,537 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:44:51,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800002468] [2021-11-25 18:44:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:51,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:51,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:51,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:44:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:51,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 18:44:51,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:44:51,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:44:51,737 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:44:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096550746] [2021-11-25 18:44:51,737 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:44:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800002468] [2021-11-25 18:44:51,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800002468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:44:51,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:44:51,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:44:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953721480] [2021-11-25 18:44:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:44:51,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:44:51,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:44:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:44:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:44:51,741 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:44:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:44:51,788 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2021-11-25 18:44:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:44:51,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-25 18:44:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:44:51,790 INFO L225 Difference]: With dead ends: 40 [2021-11-25 18:44:51,790 INFO L226 Difference]: Without dead ends: 24 [2021-11-25 18:44:51,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:44:51,793 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:44:51,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:44:51,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-25 18:44:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-25 18:44:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:44:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-11-25 18:44:51,801 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 23 [2021-11-25 18:44:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:44:51,802 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-11-25 18:44:51,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:44:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2021-11-25 18:44:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 18:44:51,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:51,803 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:51,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:44:52,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-25 18:44:52,025 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash 377394655, now seen corresponding path program 1 times [2021-11-25 18:44:52,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:52,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226656291] [2021-11-25 18:44:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:52,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:52,040 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:44:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594581599] [2021-11-25 18:44:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:52,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:52,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:52,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:52,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:44:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-25 18:44:52,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:52,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:44:52,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 37 treesize of output 33 [2021-11-25 18:44:53,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 633 treesize of output 598 [2021-11-25 18:44:56,800 INFO L354 Elim1Store]: treesize reduction 8601, result has 8.7 percent of original size [2021-11-25 18:44:56,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 8 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 104 case distinctions, treesize of input 609 treesize of output 1278 [2021-11-25 18:44:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 114 [2021-11-25 18:44:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 114 [2021-11-25 18:44:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 758 treesize of output 405 [2021-11-25 18:44:57,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:57,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 118 [2021-11-25 18:44:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 162 [2021-11-25 18:44:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 142 [2021-11-25 18:44:57,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:57,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 96 [2021-11-25 18:44:57,888 INFO L354 Elim1Store]: treesize reduction 20, result has 13.0 percent of original size [2021-11-25 18:44:57,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 30 [2021-11-25 18:44:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:57,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:08,952 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:48:08,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:08,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226656291] [2021-11-25 18:48:08,956 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:48:08,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594581599] [2021-11-25 18:48:08,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594581599] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:08,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [384099982] [2021-11-25 18:48:08,976 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:48:08,977 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:08,981 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:08,992 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:08,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:09,149 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:48:09,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:48:09,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:09,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-25 18:48:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:09,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2021-11-25 18:48:09,315 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 34 treesize of output 30 [2021-11-25 18:48:09,367 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 34 treesize of output 30 [2021-11-25 18:48:09,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:48:10,439 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 59 for LOIs [2021-11-25 18:48:10,449 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:15,713 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '563#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:15,713 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:15,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:48:15,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-25 18:48:15,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285063143] [2021-11-25 18:48:15,714 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:15,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:48:15,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:48:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1170, Unknown=2, NotChecked=0, Total=1332 [2021-11-25 18:48:15,717 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:48:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:16,308 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2021-11-25 18:48:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 18:48:16,309 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2021-11-25 18:48:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:16,310 INFO L225 Difference]: With dead ends: 46 [2021-11-25 18:48:16,310 INFO L226 Difference]: Without dead ends: 43 [2021-11-25 18:48:16,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=170, Invalid=1310, Unknown=2, NotChecked=0, Total=1482 [2021-11-25 18:48:16,312 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:16,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 53 Unchecked, 0.0s Time] [2021-11-25 18:48:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-25 18:48:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2021-11-25 18:48:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 18:48:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-11-25 18:48:16,323 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 25 [2021-11-25 18:48:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:16,323 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-11-25 18:48:16,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:48:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2021-11-25 18:48:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 18:48:16,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:16,325 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:16,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:16,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:16,528 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1199539594, now seen corresponding path program 2 times [2021-11-25 18:48:16,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:16,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392017674] [2021-11-25 18:48:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:16,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:16,546 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:48:16,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799557249] [2021-11-25 18:48:16,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:48:16,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:16,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:16,547 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:16,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:48:16,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:48:16,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:16,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:48:16,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:48:16,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:48:16,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392017674] [2021-11-25 18:48:16,765 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:48:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799557249] [2021-11-25 18:48:16,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799557249] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [901212163] [2021-11-25 18:48:16,767 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:48:16,767 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:16,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:16,768 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:16,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:16,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:16,859 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 18:48:16,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 68 [2021-11-25 18:48:16,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:16,940 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:48:16,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:48:17,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:17,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2021-11-25 18:48:17,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:17,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:48:17,333 INFO L354 Elim1Store]: treesize reduction 191, result has 17.3 percent of original size [2021-11-25 18:48:17,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 351 treesize of output 354 [2021-11-25 18:48:17,436 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 34 treesize of output 30 [2021-11-25 18:48:17,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:48:18,321 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2021-11-25 18:48:18,332 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:19,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '875#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:19,940 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:19,940 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:48:19,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-25 18:48:19,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752525870] [2021-11-25 18:48:19,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:19,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 18:48:19,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:19,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 18:48:19,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2021-11-25 18:48:19,942 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 18:48:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:20,100 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2021-11-25 18:48:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:48:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-11-25 18:48:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:20,102 INFO L225 Difference]: With dead ends: 64 [2021-11-25 18:48:20,102 INFO L226 Difference]: Without dead ends: 49 [2021-11-25 18:48:20,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2021-11-25 18:48:20,104 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:20,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 67 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:48:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-25 18:48:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-11-25 18:48:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 18:48:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-11-25 18:48:20,114 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 26 [2021-11-25 18:48:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:20,115 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-11-25 18:48:20,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 18:48:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2021-11-25 18:48:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 18:48:20,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:20,116 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:20,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:20,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:20,328 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:20,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1255460819, now seen corresponding path program 3 times [2021-11-25 18:48:20,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:20,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024122634] [2021-11-25 18:48:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:20,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:20,342 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:48:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124786485] [2021-11-25 18:48:20,343 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:48:20,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:20,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:20,344 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:20,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:48:20,403 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:48:20,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:20,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:48:20,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:48:20,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:48:20,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:20,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024122634] [2021-11-25 18:48:20,563 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:48:20,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124786485] [2021-11-25 18:48:20,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124786485] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:20,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472943067] [2021-11-25 18:48:20,574 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:48:20,575 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:20,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:20,575 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:20,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:20,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:20,654 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:48:20,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:48:20,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:20,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-25 18:48:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:20,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2021-11-25 18:48:20,788 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 34 treesize of output 30 [2021-11-25 18:48:20,818 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 34 treesize of output 30 [2021-11-25 18:48:21,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:48:21,730 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 59 for LOIs [2021-11-25 18:48:21,740 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:23,641 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1248#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:23,641 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:23,641 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:48:23,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 18:48:23,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365899578] [2021-11-25 18:48:23,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:23,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:48:23,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:48:23,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:48:23,643 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:48:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:23,811 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2021-11-25 18:48:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:48:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-11-25 18:48:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:23,812 INFO L225 Difference]: With dead ends: 74 [2021-11-25 18:48:23,813 INFO L226 Difference]: Without dead ends: 63 [2021-11-25 18:48:23,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2021-11-25 18:48:23,814 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:23,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 54 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:48:23,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-25 18:48:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-11-25 18:48:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.275) internal successors, (51), 40 states have internal predecessors, (51), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-25 18:48:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2021-11-25 18:48:23,829 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 28 [2021-11-25 18:48:23,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:23,829 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2021-11-25 18:48:23,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:48:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2021-11-25 18:48:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 18:48:23,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:23,831 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:23,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:24,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:24,044 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:24,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:24,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1921523941, now seen corresponding path program 4 times [2021-11-25 18:48:24,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:24,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020493773] [2021-11-25 18:48:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:24,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:24,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:48:24,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997257621] [2021-11-25 18:48:24,062 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:48:24,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:24,065 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:24,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 18:48:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:24,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:48:24,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:48:24,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:48:24,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:24,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020493773] [2021-11-25 18:48:24,252 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:48:24,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997257621] [2021-11-25 18:48:24,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997257621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:24,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1955159012] [2021-11-25 18:48:24,255 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:48:24,255 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:24,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:24,256 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:24,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,341 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:48:24,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:48:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-25 18:48:24,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2021-11-25 18:48:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,630 INFO L354 Elim1Store]: treesize reduction 106, result has 6.2 percent of original size [2021-11-25 18:48:24,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 349 [2021-11-25 18:48:24,719 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 34 treesize of output 30 [2021-11-25 18:48:24,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:48:25,321 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2021-11-25 18:48:25,323 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:26,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1643#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:26,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:26,789 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:48:26,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-25 18:48:26,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877230514] [2021-11-25 18:48:26,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:26,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:48:26,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:26,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:48:26,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:48:26,790 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:48:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:26,902 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions. [2021-11-25 18:48:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:48:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-11-25 18:48:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:26,904 INFO L225 Difference]: With dead ends: 88 [2021-11-25 18:48:26,904 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 18:48:26,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2021-11-25 18:48:26,905 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 48 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:26,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 42 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:48:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 18:48:26,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2021-11-25 18:48:26,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-25 18:48:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2021-11-25 18:48:26,917 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 28 [2021-11-25 18:48:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:26,917 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2021-11-25 18:48:26,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:48:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2021-11-25 18:48:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 18:48:26,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:26,919 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:26,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:27,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:27,124 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:48:27,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1810866803, now seen corresponding path program 5 times [2021-11-25 18:48:27,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:27,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031162079] [2021-11-25 18:48:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:27,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:27,143 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:48:27,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080502059] [2021-11-25 18:48:27,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:48:27,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:27,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:27,145 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 18:48:27,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:48:27,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:27,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 18:48:27,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:27,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 622 treesize of output 589 [2021-11-25 18:48:30,372 INFO L354 Elim1Store]: treesize reduction 7268, result has 15.7 percent of original size [2021-11-25 18:48:30,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 8 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 16 new quantified variables, introduced 88 case distinctions, treesize of input 600 treesize of output 1812 [2021-11-25 18:48:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:30,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,033 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-25 18:48:31,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 162 [2021-11-25 18:48:31,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,304 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-25 18:48:31,334 INFO L354 Elim1Store]: treesize reduction 155, result has 7.2 percent of original size [2021-11-25 18:48:31,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 347 treesize of output 203 [2021-11-25 18:48:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,610 INFO L354 Elim1Store]: treesize reduction 177, result has 14.9 percent of original size [2021-11-25 18:48:31,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 361 treesize of output 235 [2021-11-25 18:48:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:31,954 INFO L354 Elim1Store]: treesize reduction 207, result has 0.5 percent of original size [2021-11-25 18:48:31,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 735 treesize of output 393 [2021-11-25 18:48:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,184 INFO L354 Elim1Store]: treesize reduction 165, result has 20.7 percent of original size [2021-11-25 18:48:32,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 367 treesize of output 253 [2021-11-25 18:48:32,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,384 INFO L354 Elim1Store]: treesize reduction 177, result has 14.9 percent of original size [2021-11-25 18:48:32,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 266 [2021-11-25 18:48:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:32,504 INFO L354 Elim1Store]: treesize reduction 207, result has 0.5 percent of original size [2021-11-25 18:48:32,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 525 treesize of output 290 [2021-11-25 18:48:32,607 INFO L354 Elim1Store]: treesize reduction 1193, result has 1.0 percent of original size [2021-11-25 18:48:32,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 402 treesize of output 258 [2021-11-25 18:48:33,674 INFO L354 Elim1Store]: treesize reduction 59, result has 35.2 percent of original size [2021-11-25 18:48:33,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 71 [2021-11-25 18:48:34,573 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-25 18:48:34,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:35,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 639 treesize of output 607 [2021-11-25 18:49:26,768 WARN L227 SmtUtils]: Spent 51.66s on a formula simplification. DAG size of input: 693 DAG size of output: 279 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:49:26,778 INFO L354 Elim1Store]: treesize reduction 7351, result has 17.7 percent of original size [2021-11-25 18:49:26,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 8 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 16 new quantified variables, introduced 100 case distinctions, treesize of input 607 treesize of output 1864 [2021-11-25 18:49:27,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:27,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:27,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 152 [2021-11-25 18:49:28,028 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:49:28,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:28,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:28,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 152 [2021-11-25 18:49:28,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,000 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:29,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 146 [2021-11-25 18:49:29,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:29,538 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-25 18:49:29,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 315 treesize of output 178 [2021-11-25 18:49:30,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:30,338 INFO L354 Elim1Store]: treesize reduction 157, result has 7.1 percent of original size [2021-11-25 18:49:30,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 315 treesize of output 190 [2021-11-25 18:49:32,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:49:32,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 229 treesize of output 153 [2021-11-25 18:49:32,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,477 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:32,649 INFO L244 Elim1Store]: Index analysis took 310 ms [2021-11-25 18:49:33,264 INFO L354 Elim1Store]: treesize reduction 225, result has 13.5 percent of original size [2021-11-25 18:49:33,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 324 treesize of output 219 [2021-11-25 18:49:34,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,795 INFO L354 Elim1Store]: treesize reduction 311, result has 8.5 percent of original size [2021-11-25 18:49:34,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 326 treesize of output 217 [2021-11-25 18:49:34,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:34,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,157 INFO L354 Elim1Store]: treesize reduction 297, result has 12.6 percent of original size [2021-11-25 18:49:35,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 491 treesize of output 333 [2021-11-25 18:49:35,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,530 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:35,796 INFO L354 Elim1Store]: treesize reduction 325, result has 5.2 percent of original size [2021-11-25 18:49:35,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 945 treesize of output 592 [2021-11-25 18:49:36,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:36,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:36,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:37,394 INFO L354 Elim1Store]: treesize reduction 343, result has 22.0 percent of original size [2021-11-25 18:49:37,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 756 treesize of output 657 [2021-11-25 18:49:40,095 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,096 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,103 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:40,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:41,609 INFO L354 Elim1Store]: treesize reduction 345, result has 22.3 percent of original size [2021-11-25 18:49:41,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 897 treesize of output 648 [2021-11-25 18:49:44,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:44,759 INFO L354 Elim1Store]: treesize reduction 278, result has 19.0 percent of original size [2021-11-25 18:49:44,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 565 treesize of output 491 [2021-11-25 18:49:46,746 INFO L354 Elim1Store]: treesize reduction 151, result has 23.0 percent of original size [2021-11-25 18:49:46,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 407 treesize of output 256 [2021-11-25 18:49:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-25 18:49:52,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:52,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031162079] [2021-11-25 18:49:52,924 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:49:52,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080502059] [2021-11-25 18:49:52,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080502059] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:49:52,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [454273102] [2021-11-25 18:49:52,926 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:49:52,927 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:49:52,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:49:52,927 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:49:52,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:49:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:52,997 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:49:52,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:49:53,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:53,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-25 18:49:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:53,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2021-11-25 18:49:53,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:53,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:53,288 INFO L354 Elim1Store]: treesize reduction 106, result has 6.2 percent of original size [2021-11-25 18:49:53,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 349 [2021-11-25 18:49:53,386 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 34 treesize of output 30 [2021-11-25 18:49:53,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:49:54,011 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2021-11-25 18:49:54,013 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:49:56,040 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2086#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:49:56,040 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:49:56,040 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:49:56,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-11-25 18:49:56,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177722576] [2021-11-25 18:49:56,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:49:56,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 18:49:56,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 18:49:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2021-11-25 18:49:56,043 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 24 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 18:49:57,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:57,093 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-11-25 18:49:57,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 18:49:57,093 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2021-11-25 18:49:57,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:57,095 INFO L225 Difference]: With dead ends: 75 [2021-11-25 18:49:57,095 INFO L226 Difference]: Without dead ends: 46 [2021-11-25 18:49:57,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=422, Invalid=2028, Unknown=0, NotChecked=0, Total=2450 [2021-11-25 18:49:57,097 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:57,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 78 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 144 Invalid, 0 Unknown, 92 Unchecked, 0.2s Time] [2021-11-25 18:49:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-25 18:49:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2021-11-25 18:49:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:49:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2021-11-25 18:49:57,110 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 29 [2021-11-25 18:49:57,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:57,111 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-11-25 18:49:57,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 18:49:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2021-11-25 18:49:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 18:49:57,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:57,112 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:49:57,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 18:49:57,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 18:49:57,313 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1878568822, now seen corresponding path program 6 times [2021-11-25 18:49:57,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:57,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088572878] [2021-11-25 18:49:57,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:57,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:57,322 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:49:57,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166065526] [2021-11-25 18:49:57,323 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:49:57,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:49:57,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:49:57,323 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:49:57,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 18:49:57,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:49:57,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:49:57,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:49:57,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:49:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 18:49:57,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:49:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-25 18:49:57,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:49:57,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088572878] [2021-11-25 18:49:57,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:49:57,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166065526] [2021-11-25 18:49:57,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166065526] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:49:57,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [124964560] [2021-11-25 18:49:57,561 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:49:57,562 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:49:57,562 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:49:57,562 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:49:57,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:49:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:57,630 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:49:57,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:49:57,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:57,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-25 18:49:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:57,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2021-11-25 18:49:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:57,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:49:57,941 INFO L354 Elim1Store]: treesize reduction 191, result has 17.3 percent of original size [2021-11-25 18:49:57,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 351 treesize of output 354 [2021-11-25 18:49:58,047 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 34 treesize of output 30 [2021-11-25 18:49:58,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:49:58,327 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 14 for LOIs [2021-11-25 18:49:58,329 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:49:59,517 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2507#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:49:59,517 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:49:59,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:49:59,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 18:49:59,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128604492] [2021-11-25 18:49:59,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:49:59,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:49:59,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:49:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:49:59,519 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:49:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:49:59,677 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2021-11-25 18:49:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:49:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2021-11-25 18:49:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:49:59,678 INFO L225 Difference]: With dead ends: 64 [2021-11-25 18:49:59,678 INFO L226 Difference]: Without dead ends: 40 [2021-11-25 18:49:59,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2021-11-25 18:49:59,680 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:49:59,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 62 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:49:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-25 18:49:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-11-25 18:49:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:49:59,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-11-25 18:49:59,687 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 33 [2021-11-25 18:49:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:49:59,687 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-11-25 18:49:59,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:49:59,688 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-11-25 18:49:59,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 18:49:59,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:49:59,689 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:49:59,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 18:49:59,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:49:59,912 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:49:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:49:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1727675718, now seen corresponding path program 7 times [2021-11-25 18:49:59,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:49:59,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525187245] [2021-11-25 18:49:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:49:59,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:49:59,922 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:49:59,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745352807] [2021-11-25 18:49:59,922 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:49:59,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:49:59,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:49:59,929 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:49:59,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 18:49:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:49:59,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:49:59,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:50:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-25 18:50:00,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:50:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-25 18:50:00,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:50:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525187245] [2021-11-25 18:50:00,130 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:50:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745352807] [2021-11-25 18:50:00,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745352807] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:50:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209787064] [2021-11-25 18:50:00,132 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 18:50:00,132 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:50:00,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:50:00,133 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:50:00,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:50:00,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,217 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 18:50:00,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 68 [2021-11-25 18:50:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,340 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:50:00,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:50:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2021-11-25 18:50:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:00,646 INFO L354 Elim1Store]: treesize reduction 106, result has 6.2 percent of original size [2021-11-25 18:50:00,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 349 [2021-11-25 18:50:00,744 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 34 treesize of output 30 [2021-11-25 18:50:01,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 100 [2021-11-25 18:50:01,434 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2021-11-25 18:50:01,442 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:50:03,085 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2907#(and (<= 0 (+ |ULTIMATE.start_main_~index2~0#1| 32768)) (<= ~ARR_SIZE~0 |ULTIMATE.start_main_~row~0#1|) (<= 0 (+ |ULTIMATE.start_main_~index1~0#1| 32768)) (<= |ULTIMATE.start_main_~index2~0#1| 32767) (<= |ULTIMATE.start_main_~index1~0#1| 32767) (<= 0 |ULTIMATE.start_main_~column~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ ~ARR_SIZE~0 32768)) (<= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (<= |ULTIMATE.start_main_~sum~0#1| (* 2 ~ARR_SIZE~0)) 1 0)) (<= 0 |ULTIMATE.start_main_~#array~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~num~0#1| 1)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~row~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~temp~0#1|) (<= |ULTIMATE.start_main_~temp~0#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:50:03,085 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:50:03,085 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:50:03,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 18:50:03,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276556396] [2021-11-25 18:50:03,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:50:03,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:50:03,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:50:03,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:50:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:50:03,087 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:50:03,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:50:03,187 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-11-25 18:50:03,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:50:03,188 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2021-11-25 18:50:03,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:50:03,189 INFO L225 Difference]: With dead ends: 40 [2021-11-25 18:50:03,189 INFO L226 Difference]: Without dead ends: 36 [2021-11-25 18:50:03,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-11-25 18:50:03,190 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:50:03,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 44 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:50:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-25 18:50:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-25 18:50:03,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 18:50:03,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-11-25 18:50:03,197 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 34 [2021-11-25 18:50:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:50:03,198 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-11-25 18:50:03,198 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-25 18:50:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-11-25 18:50:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 18:50:03,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:50:03,199 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:50:03,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 18:50:03,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 18:50:03,404 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:50:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:50:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2004467695, now seen corresponding path program 8 times [2021-11-25 18:50:03,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:50:03,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435495635] [2021-11-25 18:50:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:50:03,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:50:03,413 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:50:03,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094324017] [2021-11-25 18:50:03,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:50:03,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:50:03,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:50:03,421 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:50:03,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5e1bedb-be66-4759-97c3-8ef6672745b7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 18:50:03,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-25 18:50:03,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:50:03,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 78 conjunts are in the unsatisfiable core [2021-11-25 18:50:03,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:50:03,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 49 [2021-11-25 18:50:03,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2021-11-25 18:50:03,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2021-11-25 18:50:03,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2021-11-25 18:50:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:03,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:03,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:50:03,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 89 [2021-11-25 18:50:03,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:03,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 7 [2021-11-25 18:50:03,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:03,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 7 [2021-11-25 18:50:04,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 92 [2021-11-25 18:50:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,066 INFO L354 Elim1Store]: treesize reduction 310, result has 18.6 percent of original size [2021-11-25 18:50:04,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 136 [2021-11-25 18:50:04,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,082 INFO L354 Elim1Store]: treesize reduction 65, result has 1.5 percent of original size [2021-11-25 18:50:04,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 25 [2021-11-25 18:50:04,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,130 INFO L354 Elim1Store]: treesize reduction 69, result has 1.4 percent of original size [2021-11-25 18:50:04,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 30 [2021-11-25 18:50:04,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 174 [2021-11-25 18:50:04,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,283 INFO L354 Elim1Store]: treesize reduction 212, result has 14.5 percent of original size [2021-11-25 18:50:04,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 173 treesize of output 231 [2021-11-25 18:50:04,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,411 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:50:04,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 266 treesize of output 136 [2021-11-25 18:50:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:04,544 INFO L354 Elim1Store]: treesize reduction 65, result has 1.5 percent of original size [2021-11-25 18:50:04,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 175 treesize of output 86 [2021-11-25 18:50:06,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 671 treesize of output 630 [2021-11-25 18:50:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:50:06,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:50:06,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:50:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:06,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:50:06,439 INFO L244 Elim1Store]: Index analysis took 229 ms [2021-11-25 18:50:07,792 INFO L354 Elim1Store]: treesize reduction 1785, result has 16.0 percent of original size [2021-11-25 18:50:07,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 8 stores, 12 select indices, 12 select index equivalence classes, 52 disjoint index pairs (out of 66 index pairs), introduced 20 new quantified variables, introduced 31 case distinctions, treesize of input 641 treesize of output 2113 [2021-11-25 18:50:08,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:08,839 INFO L244 Elim1Store]: Index analysis took 616 ms [2021-11-25 18:50:08,994 INFO L354 Elim1Store]: treesize reduction 303, result has 5.6 percent of original size [2021-11-25 18:50:08,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 44 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 11 case distinctions, treesize of input 369 treesize of output 220 [2021-11-25 18:50:09,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,624 INFO L244 Elim1Store]: Index analysis took 325 ms [2021-11-25 18:50:09,640 INFO L354 Elim1Store]: treesize reduction 225, result has 0.4 percent of original size [2021-11-25 18:50:09,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 8 case distinctions, treesize of input 326 treesize of output 179 [2021-11-25 18:50:09,680 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:50:09,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,490 INFO L244 Elim1Store]: Index analysis took 680 ms [2021-11-25 18:50:10,631 INFO L354 Elim1Store]: treesize reduction 180, result has 6.3 percent of original size [2021-11-25 18:50:10,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 38 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 7 case distinctions, treesize of input 444 treesize of output 259 [2021-11-25 18:50:10,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:10,951 INFO L244 Elim1Store]: Index analysis took 171 ms [2021-11-25 18:50:11,120 INFO L354 Elim1Store]: treesize reduction 150, result has 10.7 percent of original size [2021-11-25 18:50:11,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 39 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 932 treesize of output 542 [2021-11-25 18:50:11,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:11,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,174 INFO L244 Elim1Store]: Index analysis took 608 ms [2021-11-25 18:50:12,188 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-25 18:50:12,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 40 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 5 case distinctions, treesize of input 451 treesize of output 245 [2021-11-25 18:50:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:12,745 INFO L244 Elim1Store]: Index analysis took 406 ms [2021-11-25 18:50:12,756 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-25 18:50:12,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 40 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 5 case distinctions, treesize of input 650 treesize of output 395 [2021-11-25 18:50:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:13,640 INFO L244 Elim1Store]: Index analysis took 507 ms [2021-11-25 18:50:13,657 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-25 18:50:13,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 40 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 5 case distinctions, treesize of input 363 treesize of output 210 [2021-11-25 18:50:58,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:58,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:58,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:50:58,706 INFO L190 IndexEqualityManager]: detected not equals via solver